ans thi ques part 1

Discussion in 'NBDE Exams & Licensure Exams' started by dentindi, May 26, 2008.

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  1. dentindi

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    What are predominant linkages in glycogen between glucose units?
    Alpha 1,4
    Alpha 1,6
    Beta 1,3
    Beta 1,4
    Beta 1,6
    In fermentation, the final electron acceptor is
    Water
    Oxygen
    Carbon dioxide
    An organic compound
    An inorganic compound
    Which of the following primary teeth is MOST likely to have an oblique ridge?
    Maxillary canine
    Maxillary first molar
    Maxillary second molar
    Mandibular first molar
    Mandibular second molar
    Each of the following structures is found in the infratemporal fossae EXCEPT one. Which one is this EXCEPTION?
    Lingual nerve
    Medial pterygoid muscle
    Inferior alveolar nerve
    Pterygopalatine ganglion
    Pterygoid venous plexus
    Each of the following cranial nerves is associated with the cavernous sinus EXCEPT one. Which one is this EXCEPTION?
    Facial
    Abducens
    Trochlear
    Trigeminal
    Oculomotor
    Calcium dipicolinate is present in large amounts in
    Spores
    Flagella
    Mesosomes
    Ribosomes
    Mitochondria
    When compared to the primary mandibular first moral, the primary mandibular second molar normally exhibits a GREATER number of which of the following?
    Oblique ridges
    Roots
    Cusps
    Cervical ridges
    Transverse ridges
    Which of the following describes the movement of glycine molecules in an electric field at a pH of 6.06 (the isoelectric pH for glycine)? The glycine molecules will
    Not move
    Move to the anode
    Move to the cathode
    Move to both anode and cathode
    Zinc is an essential component of which of the following?
    Pepsin
    Amaylase
    Hexokinase
    Adenylate cyclase
    Carbonic anhydrase
    Which of the following cancers typically arises in teenagers and young adults?
    Wilms' tumor
    Angiosarcoma
    Ewing's sarcoma
    Multiple myeloma
    Chronic lymphocytic leukemia
    Each of the following muscles usually appears in the floor of the posterior triangle EXCEPT one. Which one is this EXCEPTION?
    Sternohyoid
    Medius scalene
    Splenius capitis
    Levator scapulae
    Anterior belly of omohyoid
    In an ideal intercuspal relation, the mesiofacial cusp of the maxillary first molar opposes which morphologic entity of the mandiubular first molar?
    Central fossa
    Lingual groove
    Distofacial groove
    Mesiofacial groove
    Three days ago, a patient received her third immunization with tetanus toxoid. What class of antibodies specific for tetanus toxoid would one expect to find in her serum?
    Similar concentrations of IgM and IgG
    High concentrations of both IgM and IgD
    Low concentrations of IgM; high concentration of IgE
    Low concentration of IgM; high concentration of IgG
    High concentration of IgM; low concentration of IgG
    Facilitated diffusion DIFFERS from active transport in that net transport by facilitated diffusion
    Has a transport maximum
    Uses ATP as an energy source
    Requires a concentration gradient
    Occurs as an endergonic (positive G) process
    Mucosa of the anterior two-thirds of the tongue develops primarily from
    Rathke's pouch
    Tuberculum impar
    Foregut endoderm
    Hypobranchial eminence
    Lateral lingual swellings
    Each of the following statements regarding aldosterone is correct EXCEPT one. Which one is this EXCEPTION?
    Is a mineralocorticoid
    Increases Na uptake from the kidneys
    Production is stimulated by angiotensin II
    Is produced in the zona fasciculata of the adrenal cortex
    Interstitial pulmonary inflammation is MOST characteristic of
    Viral pneumonia
    Bacterial pneumonia
    Lung abscess
    Bronchial asthma
    Bronchopneumonia
    The occlusal outline of a mandibular first molar is similar to a
    Circle
    Square
    Hexagon
    Pentagon
    Rhomboid
    Which of the following statements is correct with respect to mastication of food?
    Food is masticated primarily in a border movement
    Food is masticated primarily in lateral contacting movement
    An ideal occlusion is a requisite for masticatory efficiency
    Proper incisor contact is a requisite for masticatory efficiency
    Indigestion is generally related to inadequate mastication of food
    Human papillomaviruses 16 and 18 are strongly correlated with the appearance of
    Genital warts
    Plantar warts
    Cutaneous warts
    Uterine cancer
    Cervical cancer
    The sensory receptors serving the stretch reflex are classified as
    Nociceptors
    Chemoreceptors
    Proprioceptors
    Exteroceptors
    Which of the following muscles participates in flexion at the gleno-humeral and the humero-ulnar joints?
    Deltoid
    Brachialis
    Biceps brachii
    Triceps brachii
    Coracobrachiallis
    During fetal development, blood is shunted from the pulmonary artery to the aortic arch by means of the
    Foramen ovale
    Sinus venosus
    Ductus venosus
    Ductus arteriosus
    Foramen secundum
    Which of the following factors MOST influences the lingual concavity of the maxillary anterior teeth and groove direction of the posterior teeth?
    Anterior guidance
    Angle of the eminence
    Curve of the occlusion
    Sideshift of the mandible (Bennett movement)
    Direction of movement of the rotating condyle
    Rough pneumococci grown in the presence of DNA from dead smooth pneumococci develop capsules. This is an example of bacterial
    Mutation
    Dominance
    Conjugation
    Transduction
    Transformation
    Which of the following base pairs promotes helix stabilization in DNA but does NOT do so in RNA?
    G-C
    A-T
    G-U
    C-T
    A-U
    Blood from the cephalic vein drains into which of the following veins?
    Basilic
    Brachiocephalic
    Axillary
    Internal thoracic
    Superior vena cava
    The junction between the tooth surface and the crevicular epithelium is composed of which of the following?
    Cementoid
    Tight junction
    Intermediate filaments
    Basal lamina-like structure
    Interstitial crevicular fluid
    If the anticodon on transfer RNA is 5' ACG 3' then which of the following is its corresponding codon on messenger-RNA?
    5' CGT 3'
    5' CGU 3'
    5' TGC 3'
    5' UAG 3'
    5' UGC 3'
    On the crown of the primary maxillary first molar, the mesial surface normally
    Is larger than the distal surface of the same tooth
    Exhibits a concave lingual outline
    Is wider occlusocervically than buccolingually
    Exhibits a straight cervical line
    Is wider buccolingually at the occlusal table than at the cervical third
    Staphylococcus aureus MOST commonly causes
    Skin infections
    Septicemia
    Sore throat
    Chronic infections
    Exogenous infections
    Each of the following is characteristic of herpes zoster EXCEPT one. Which one is the EXCEPTION?
    Unilateral
    Usually involves 1-3 dermatomes
    Occurs repeatedly in immunocompetent patients
    Only occurs in an individual having a latent VZV infection
    More common in individuals who are immunocompromised
    Which of the following describes the contact relationship between a maxillary central incisor and a maxillary lateral incisor?
    Contact is offset to the lingual
    Contact is centered incisocervically
    Lingual embrassure is larger than the facial embrassure
    Incisal embrassure is the largest of all the embrasures
    Which of the following shows a relative INCREASE as the dental pulp ages?
    Number of fibroblasts
    Number of odontoblasts
    Number of blood vessels
    Size of the pulp chamber
    Amount of fibrous connective tissue
    The rapid emergence of new strains of human immunodeficiency virus is primarily the result of
    The frequent genomic recombination between human immunodeficiency virus and other retroviruses
    Frequent errors in the translation of viral proteins
    The lack of immune response to the viral envelope glycoprotein
    Frequent errors introduced by viral reverse transcriptase
    The imprecision of protein cleavage by viral protease
    Mesial and distal pulp horns are more likely to be found in which of the following teeth?
    Maxillary central incisors
    Mandibular central incisors
    Mandibular canines
    Maxillary first premolars
    Mandibular first premolars
    The major sensory nerve to the parietal pericardium branches from which of the following nerves?
    Vagus
    Muscuophrenic
    Intercostal
    Phrenic
    Internal thoracic
    Which of the following muscles is MOST concerned in quiet respiration?
    Rhomboid
    Diaphragm
    Subclavius
    Sacrospinalis
    Pectoralis major
    Before swallowing can be initialized, afferent information must be received
    From muscle spindles, indicating the consistency of a soft bolus of food
    In a lesser amount from nociceptors indicating a soft bolus of food
    From mucosal mechanoreceptors, indicating the consistency of a soft bolus of food
    From pharyngeal taste receptors, indicating the consistency of a soft bolus of food
    When the mandible moves to the right, the mesiolingual cusp of the maxillary right first molar passes through which groove of the mandibular right first molar?
    Mesiomarginal
    Distofacial
    Mesiofacial
    Lingual
    Central
    The antigenic component of which of the following vaccines is a capsular antigen?
    Influenza
    Poliovirus
    Hepatitis B
    Haemophilus influenza
    Coupled respiration requires each of the following EXCEPT one. Which one is this EXCPETION?
    ADP
    Oxygen
    Carbon dioxide
    Electron donor
    Inorganic phosphate
    As the severity of periodontal disease progresses, there is an increase in plasma cells that produce which of the following?
    sIgA
    IgD
    IgE
    IgG
    IgM
    Which of the following is a complication of cirrhosis?
    Splenic atrophy
    Hepatic angioma formation
    Obstruction of portal circulation
    Increased plasma protein formation
    Decreased central venous pressure
    Which of the following is produced when a mutation occurs in an enzyme controlling a signal pathway involved in cell growth processes?
    Epigene
    Antigene
    Oncogene
    Monogene
    Transgene
    DNA that is complementary to mRNA can be made using which of the following?
    A plasmid
    DNA ligase
    A retrovirus
    RNA polymerase
    Reverse transcriptase
    Which of the following groups of organs is retroperitoneal?
    Pancrease, transverse colon, and descending colon
    Pancrease, stomach, and ovary
    Kidney, transverse colon, and ovary
    Ureter, gallbladder, and transverse colon
    Kidney, adrenal, and rectum
    Each of the following derives from a pharyngeal pouch EXCEPT one. Which one is this EXCEPTION?
    Thymus
    Parathyroid
    Parotid gland
    Auditory tube
    Palatine tonsil
    SEE question 49 (Diagram involved)
    Which of the following is caused by vitamin D deficiency in adults?
    Rickets
    Myxedema
    Acromegaly
    Osteomalacia
    Osteitis fibrosa cystica
    In unilateral balanced occlusion, contact between lower buccal cusps and upper buccal cusps, along with simultanwous contact between lower lingual cusps and upper lingual cusps, will MOST likely occur in which of the following types of mandibular movements?
    Laterotrusive
    Mediotrusive
    Straight retrusive
    Straight protrusive
    The buccal mucosa typically has which of the following epithelia?
    Simple columnar
    Pseudostratified columnar
    Non-keratinzed, stratified squamous
    Parakeratinized, stratified squamous
    Orthokeratinized, stratified squamous
    The apex of the horizontal plane Gothic-arch tracing represents which of the following positions?
    Maximum opening
    Centric relation
    Lateral protrusive
    Rest position
    Which of the following streptococcal virulence factors acts as a superantigen, mediating a variety of cytokine-induced effects that can result in life-threatening disease?
    Pyrogenic exotoxin
    Hyaluronidase
    Streptokinase
    Streptolysin O
    Preganglionic parasympathitic fibers that synapse in the pterygopalatine ganglion travel in which of the following nerves?
    Maxillary
    Lesser palatine
    Lesser petrosal
    Greater palatine
    Greater petrosal
    Initiation of calcification for the mandibular central incisor normally occurs at
    3-4 months of age
    1 year of age
    2-3 years of age
    4-5 years of age
    6-7 years of age
    Each of the following viruses is potentially capable of causing cell transformation EXCEPT one. Which one is this EXCEPTION?
    Retrovirus
    Herpesvirus
    Picornavirus
    Hepatitis B virus
    Human papillomavirus
    Of the primary maxillary teeth, the cervical ridge would stand out MOST prominently as a distinct entity on which surface of which molar?
    First Distofacial
    First Mesiofacial
    Second Distofacial
    Second Mesiolingual
    Second Distolingual
    IL-1 is primarily produced by which of the following?
    Neutrophils
    Macrophages
    Plasma cells
    T-helper cells
    T-suppressor cells
    During endodontic therapy, one will usually find two pulp canals in which of the following?
    Mandibular canine
    Distofacial root of a maxillary molar
    Distal root of a mandibular first molar
    Mesial root of a mandibular first molar
    Lingual root of a maxillary first molar
    Which of the following statements BEST applies to saliva?
    Phosphate is the main pH buffer
    Supplies sialate for additional mucins
    Main source of enzymes for protein digestion
    Supplies calcium and phosphate for remineralization
    Undersaturated with respect to hydroxyapatite at neutral pH
    Smooth muscle contains each of the following muscle proteins EXCEPT one. Which one is this EXCEPTION?
    Actin
    Myosin
    Troponin
    Tropomyosin
    Cell bodies of neurons mediating proprioception from the periodontal lifament of the maxillary first molar lie in the
    Semilunar ganglion
    Motor nucleus of V
    Spinal nucleus of V
    Chief sensory nucleus of V
    Mesencephalic nucleus of V
    Which of the following can be used to distinguish the palatine tonsil from the pharyngeal tonsil on the histologic level?
    General shape of the tonsil
    Number of lymphatic nodules
    Type of epithelium associated with it
    Type of lymphocytes present
    Presence or absence of Hassall's corpuscles
    The movement in the upper compartment of the temporomandibular joint is rotation and translation.The movement in the lower compartment is translation.
    Both statements are TRUE
    Both statements are FALSE
    The first statement is TRUE, and the second is FALSE
    The first statement is FALSE, and the second is TRUE
    As blood flows through the periodontal membrane, tremendous pressures occur in response to forceful occlusion. Blood flow is temporarily reduced, but platelets do not aggregate because of the presence of
    Ca
    ADP
    Thrombin
    Thromboxane A2
    Prostacyclin (PgI2)
    Which of the following parts of the hypophysis is the site of oxytocin release?
    Pars nervosa
    Infundibulum
    Pars distalis
    Pars tuberalis
    Pars intermedia
    The non-working condyle performs which of the following movements?
    Straight forward
    Forward and downward
    Downward, forward, and lateral
    Downward, backward, and medial
    Downward, forward, and medial
    Which of the following substances is the predominant source of ATP at MODERATE levels (for greater than 60 minutes) of activity?
    Amino acids
    Fatty acids
    Carbohydrates
    Proteins
    Which of the following premotes the release of bile from the gallbladder?
    Gasrin
    Secretin
    Galla
    Bombesin
    Cholecystokinin
    Which of the following teeth represents the one MOST likely to present with three roots?
    Mandibular central incisor
    Mandibular second premolar
    Mandibular canine
    Maxillary first premolar
    Maxillary second premolar
    Which of the following chemical agents is approved as an immersion sterilant?
    Iodophors
    Ethyl alcohol
    Glutaraldehydes
    Synthetic phenolics
    Sodium hypochlorite
    Granulation tissue is comprised of each of the following components EXCEPT one. Which one is this EXCEPTION?
    Fibroblasts
    Plasma cells
    Capillary buds
    Endothelial cells
    Newly formed collagen
    Following eruption and initial occlusal contact in the oral cavity, a tooth will continue to erupt in order to compensate for occlusal wear. In response to this continuous eruption, which of the following is deposited at the apex of the root?
    Primary dentin
    Secondary dentin
    Reparative dentin
    Cellular cementum
    Acellular cementum
    Which of the following would produce the greatest DECREASE in resistance in a single artery 2 mm long and with a radius of 1.2 mm?
    A halving in length
    A doubling in length
    An increase in radius by a factor of 2
    A decrease in blood viscosity by a factor of 2
    Which of the following BEST describes a centric holding cusp of a mandibular left second molar?
    It is the distofacial cusp and occludes in the embrassure between maxillary first and second molars
    It is the distofacial cusp and occludes in the central fossa of a maxillary second molar
    It is the distolingual cusp and occludes in the embrassure between maxillary first and second molars
    It is the distolingual cusp and occludes in the central fossa of a maxillary second molar
    Oral streptococci are usually
    Gamma-hemolytic
    Alpha-hemolytic
    Beta-hemolytic
    Non-hemolytic
    The cell membrane is LEAST permeable to which of the following substances?
    O2
    CO2
    H2O
    Sodium
    Ethanol
    Which of the following types of dentin is the MOST highly mineralized?
    Carious
    Predentin
    Intertubular
    Interglobular
    Intra(peri)tubular
    Each of the following can be found in the dental pulp EXCEPT one. Which one is this EXCEPTION?
    Nerve tissue
    Blood vessels
    Cementoblasts
    Lymph vessels
    According to the Spaulding Classification System for contaminated items and srufaces, semi-critical items should be reprocessed by
    Exposure to ethylene oxide
    A spray-wipe-spray technique
    Immersion in a tuberculocidal disinfectant
    Washing with a chlorhexidine fluconate disinfectant
    Heat stabilization if the material is heat stable
    In the contractile cycle, the dissociation of the actomyosin complex results MOST immediately from
    ATP hydrolysis
    Release of ATP hydrolysis products
    ATP replacing ADP on the myosin heads
    Tilting of the myosin heads (crossbridges)
    Which of the following represents the consequence of the fact that DNA strans are complementary?
    Hairpin loop structures can be generated
    They will always have identical sequences
    Separated strands are able to reassociate
    They cannot get back together once separated
    Which of the following predominates in steroid producing cells?
    Smooth endoplasmic reticulum
    Rough endoplasmic reticulum
    Golgi apparatus
    Phagosomes
    Nucleolus
    The spacing between anterior teeth in the primary dentition is MOST frequently caused by
    Thumb-sucking
    Tongue thrusting
    Transseptal gingival fibers
    The growth of the dental arches
    The pressure form succedaeous teeth
    Each of the following types of cells is phagocytic EXCEPT one. Which one is this EXCEPTION?
    Monocyte
    Histiocyte
    Neutrophil
    Macrophage
    Lymphocyte
    Which of the following is MOST likely to promote depolymerization of extracellular matrix?
    Corisone
    Collagenase
    Chymotrypsin
    Hyaluronidase
    In the intercuspal position, which of the following anterior teeth has the potential of contacting both anterior and posterior antagonists?
    Maxillary lateral incisor
    Mandibular lateral incisor
    Maxillary canine
    Mandibular canine
    In the oral region, the lingual artery usually is found between the
    Lingual and hypoglossal nerves
    Mylohyoid and geniohyoid muscles
    Hyoglossus and genioglossus muscles
    Sublingual duct and hypoglossal nerve
    Oral mucous membrane and the anterior belly of the digastric muscle
    Each of the following is a type of inflammatory exudate EXCEPT one. Which one is this EXCPETION?
    Suppurative
    Fibrous
    Purulent
    Fibrinous
    Pseudomembranous
    A substance alters the rate of an enzymatic reaction by binding to the enzyme at a site other than the active site. The substance described is a (an)
    Uncoupler
    Covalent modifier
    Allosteric inhibitor
    Competitive inhibitor
    Post-translational modifier
    On a maxillary first molar, the occlusal outline contains two obtuse and two acute angles. The acute line angles are
    Mesiolingual and distolingual
    Mesiofacial and distiolingual
    Mesiolingual and distofacial
    Mesiofacial and distofacial
    Distofacial and distolingual
    When T-cells from patients who have chronic periodontal disease react with certain plaque bacterial antigens, they produce each of the following EXCEPT one. Which one is this EXCEPTION?
    Immunoglobulin
    IL-2
    TNF-B
    IFN-y
    During which of the following would blood flow to the coronary arteries be GREATEST in a resting individual
    Isovolumic contraction
    Ventricular ejection
    Atrial contraction
    Ventricular relaxation
    Atropine prevents the secretion of saliva resulting from stimulation of the chorda tympani because it
    Denatures the salivary gland proteins
    Prevents the action of acetylcholine on the secreting cells
    Prevents release of acetylcholine by sympathetic postganglionic fibers
    Prevents release of acetylcholine in autonomic ganglia
    If the point of a needle enters the parotid gland during an inferior alveolar injection and solution is deposited in the gland, the MOST likely result is
    Paralysis of the buccinator muscle
    Paralysis of the temporalis muscle
    Paresthesia of the lingual nerve
    Paralysis of temporal tympani
    A hematoma of the pterygoid venous plexus
    Which of the following promotes edema?
    Increased blood proteins
    Increased sodium excretion
    Decreased lymphatic drainage
    Decreased venule blood pressure
    Increased plasma osmotic pressure
    Which of the following BEST describes the primary ionic movement during the depolarization phase of a nerve action potential?
    Potassium ions moving from inside to outside the membrane
    Potassium ions moving into the fiber from interstitial fluid
    Large organic-negative ions moving from inside the fiber to outside the fiber
    Sodium ions moving from inside the membrane to outside the membrane
    Sodium ions moving from outside the membrane to inside the membrane
    A mature ovum is expelled from which of the following?
    Corpus luteum
    Corpus albicans
    Graafian follicles
    Corpus hemorrhagicum
    Which of the following is the characteristic immunoglobulin present in human external secretions (i.e. saliva, tears, intestinal juice)?
    Monomeric IgE
    Monomeric IgA
    Polymeric IgG4
    Polymeric IgA
    Secretory IgD
    Which of the following is the cellular organelle that contains many types of hydorlytic enzymes?
    Lysosome
    Centrosome
    Mitochondrion
    Golgi apparatus
    Endoplasmic reticulum
    Ordinarily, a 6 year old child would have which of the following teeth clinically visible?
    All primary teeth only
    All primary teeth and permanent first molars
    Primary posterior teeth, permanent first molars, and central incisors
    Primary canines, permanent first molars, and permanent mandibular incisors
     
  2. dentindi

    2+ Year Member

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    Which of the following is the lobe of the cerebral hemisphere that lies in the middle cranial fossa?
    Frontal
    Temporal
    Occipital
    Parietal
    In an ideal intercuspal position, the distoincisal aspect of a mandibular central incisor opposes which structure of which maxillary incisor?
    Lingual fossa of a lateral
    Mesial marginal ridge of a lateral
    Distal marginal ridge of a central
    Mesial marginal ridge of a central
    Lingual fossa of a central
    Virulence of the pneumococcus is associated with its
    Pyrogenic exotoxin
    C-reactive protein
    Content of nucleoprotein
    Production of streptolysin
    Capsular polysaccharide
    Which of the following statements BEST describes hydroxyapatite in enamel?
    Has a nonpolar surface
    Has 10 ions in each unit cell
    Contains no ion substitutions
    Has a higher solubility than fluorapatite
    Has a solubility that decreases as the pH decreases
    Which of the following epithelial types is normally associated with the internal lining of the majority of the tubular gastrointestinal tract?
    Simple columnar
    Simple cuboidal
    Simple squamous
    Stratified cuboidal
    Stratified squamous
    Prior to surgery, an anxious patient has a higher systolic blood pressure than previously noted. Which of the following represents the MOST likely reason?
    Cardiac shock
    Anaphylactic shock
    Atrial fibrillation
    Ventricular fibrillation
    Decreased arterial compliance
    Which of the following skin lesions is generally considered precancerous?
    Psoriasis
    Verruca vulgaris
    Intradermal nevus
    Actinic keratosis
    Seborrheic keratosis
    Which of the following is a branching, filamentous, microorganism that is a normal inhabitant of the gingival crevice and tonsillar crypts?
    Aspergillus niger
    Actinomyces naeslundii
    Penicillium notatum
    Trichophyton mentagrophytes
    Lactobacillus casei
    Glucose can be made from each of the following substances EXCEPT one. Which one is this EXCEPTION?
    Lactate
    Acetyl CoA
    Glycerol
    Pyruvate
    Fructose
    In an ideal intercuspal position, the distolingual cusp of a maxillary first molar opposes the
    Central fossa of the mandibular first molar
    Lingual sulcus of the mandibular first molar
    Mesial fossa of the mandibular second molar
    Mesial marginal ridge of the mandibular second molar
    Facial embrasure between the mandibular first and second molars
    Which of the following oral tissues contains the LEAST collagen?
    Bone
    Dentin
    Mucosa
    Enamel
    Cementum
    Each of the following statements describes a contributor to the initiation of mineralization of bone EXCEPT one. Which one is this EXCEPTION?
    Holes or pores in collagen fibers
    Release of matrix vesicles by osteoblasts
    Release of acid phosphatase by osteocytes trapped in lacunae
    Alkaline phasphatase activity in osteoblasts and matrix vesicles
    Degredation of matrix pyrophosphate to release an inorganic phosphate group
    Increased pulmonary ventilation observed at high altitudes results directly from the effect of hypoxia on the
    Carotid body
    Aortic sinus
    Hypothalamus
    Carotid sinus
    Respiratory center
    Juxtamedular and cortical nephrons differ primarily in
    Filtration fraction
    Location of macula densa
    Length of proximal tubule
    Length of distal convulted tubule
    Length of the thin segment of the loop of Henle
    Which of the following represents the primary function of sIgA?
    Aggregates microorganisms and prevents colonization
    Activates complement in secretory fluids
    Promotes phagocytosis by monocytes
    Activates mast cells
    Activates NK cels
    Which of the following BEST describes the occlusal outline of a maxillary first molar from an occlusal view?
    Ovoid
    Square
    Rectangle
    Pentagonal
    Rhomboidal
    The nasopalatine nerve reaches mucosa in the oral cavity via which of the following foramina?
    Incisive
    Infraorbital
    Lesser palatine
    Greater palatine
    Pterygopalatine
    Which of the following represents the total number of teeth in the permanent dentition that normally possess a cingulum?
    4
    6
    8
    12
    16
    Cellular tropism by viruses is dependent on which of the following?
    Host cell DNA homology to viral DNA
    Temperature of host cell incubation
    Gamma-interferon production
    Cell surface receptors
    Viral enzyme synthesis
    Which of the following is an allosteric effector of an ezymatic reaction?
    Competitive inhibitor
    Noncompetitive inhibitor
    Substance that binds to the substrate
    Substance affecting enzymatic activity by binding to the active site
    Substance affecting enzymatic activity by binding to non-active sites
    Odontoblasts secrete the organic components of the dentin matrix. The fibrous matrix is MOSTLY
    Keratin
    Reticular fibers
    Type 1 collagen
    Type II and III colagen
    Reabsorbed as the dentin matures
    Which of the following BEST describes the normal root of the mandibular canine, in cross section at the CEJ
    Circular, symmetrical
    Triangular, symmetrical
    Ovoid, symmetrical
    Ovoid, but wider mesiodistally at the lingual
    Ovoid, but wider mesiodistally at the labial
    Collagen degredation that is observed in chronic periodontal disease can result directly from the action of collagenase enzymes of oral microbial origin. Such enzymes have been demonstrated as component systems of
    Porphyromonas species
    Lepthothrix buccalis
    Entamoeba gingivalis
    Enterococcus faecalis
    Veillonella species
    Hormones that exert their effects through the activation of second messengers are
    Lipophilic
    Usually water soluble peptide/protien hormones
    Initially bound to cytoplasmic hormone receptors
    Secreted by ovaries, testes, adrenal cortex, and placenta
    Which of the following exhibits phagocytic activity in the central nervous system?
    Ependymal cell
    Microglial cell
    Oligodendrocyte
    Fibrous astrocyte
    Protoplamsic astrocyte
    Each of the following coenzymes is a component of the pyruvate dehydrogenase complex EXCEPT one. Which one is this EXCEPTION?
    NAD
    Biotin
    Coenzyme A
    Thiamine pyrophasphate
    Identify the anterior tooth that MOST frequently exhibits a bifurcated root and identify the positions of the roots.
    Maxillary lateral mesial and distal
    incisor
    Maxillary lateral Facial and lingual
    incisor
    Maxillary canine Facial and lingual
    Mandibular canine Facial and lingual
    Which of the following ligaments is MOST often damaged in an inferior alveolar nerve block?
    Lateral
    Capsular
    Stylohyoid
    Stylomandibular
    Sphenomandibular
    Which of the following enzymes seals nicks in DNA?
    Exonuclease
    Endonuclease
    Ligase
    DNA polymerase
    RNA polymerase
    Which of the following teeth is the LEAST likely tooth to have a bifurcation of the root?
    Mandibular canine
    Mandibular central incisor
    Maxillary central incisor
    Mandibular lateral incisor
    Maxillary second premolar
    Hepatitis C virus infection is MOST often transmitted through
    Sexual contact
    Oral secretions
    Blood transfusions
    The fecal-oral route
    Respiratory droplets
    Neurofibromatosis type I is characterized by which of the following conditions?
    Multiple mucosal neuromas
    Perioral melanotic freckles
    Medullary carcinoma of thyroid
    Development of visceral carcinoma
    Multiple pigmented macules of the skin
    Each of the following structures increases the surface area of the small intestine EXCEPT one. Which one is the EXCEPTION?
    Villi
    Rugae
    Microvilli
    Brush border
    Circular folds
    Which of the following represents the slight incisocervical concavity on the labial crown surface of the canines that is found in the incisal third, just mesial to the labial ridge?
    Mesial fossa
    Mesiolingual fissa
    Mesial marginal ridge
    Mesiolabial line angle
    Mesiolabial developmental depression
    Submucosal glands are usually located in the
    Fundus of stomach
    Duodenum
    Appendix
    Jejunum
    Colon
    Which of the following is an endogenous fungus that is capable of producing an opportunistic infection?
    Candida
    Rhizopus
    Blastomyces
    Aspergillus
    Cryptococcus
    Which of the following pathogens is the single MOST common cause of sexually transmitted disease in the U.S.?
    Treponema pallidum
    Haemophilus ducrey
    Chlamydia trachomatis
    Herpes simplex virus
    Human immunodeficiency virus
    Which of the following is the pathway that results in the formation of glucose in the liver from lactate produced in muscle?
    Cori cycle
    Glycolysis
    Citric acid cycle
    Pentose phosphate pathway
    Which of the following represents the primary function of cementum?
    Attach Sharpey’s fibers
    Protect the root from caries
    Repair traumatic injuries of the root
    Supply nutrition to the periodontal ligament
    Aintain the width of the periodontal ligament
    Compared to a maxillary second premolar, a maxillary first premolar has
    Two roots, on facial and one lingual
    Three developmental grooves
    One root containing two root canals
    A shorter central groove
    Two roots, one mesial and one distal
    A 9-year-old boy has tinea capitis. If he is receiving appropriate therapy then he is MOST likely being treated with an
    Anti-viral agent
    Anti-mycotic agent
    Anti-bacterial agent
    Anti-parasitic agent
    A pronounced developmental groove is usually present on a marginal ridge of which of the following teeth?
    Maxillary canine
    Maxillary first premolar
    Mandibular second premolar
    Mandibular first molar
    Maxillary second molar
    MOST cases of choriocarcinoma are discovered by the appearance of a rising titer in blood or urine of which of the following?
    Acid phosphatase
    Alpha-fetoprotein
    Alkaline phasphatase
    Carcinoembryonic antigen
    Human chorionic gonadotropin
    Glucose reabsorption in the nephron is usually completed in which of the following?
    Distal tubule
    Loop of Henle
    Collecting duct
    Proximal tubule
    Which of the following represents the number and the location of cusps on the Y-type mandibular second premolar?
    No lingual and on facial
    One lingual and one facial
    One lingual and two facial
    Two lingual and one facial
    Two lingual and two facial
    Which of the following primary teeth is usually bilaterally symmetrical when viewed facially and incisally?
    Mandibular central incisor
    Maxillary central incisor
    Maxillary lateral incisor
    Mandibular lateral incisor
    Mandibular canine
    Pernicious anemia is characteirzed by each of the following symptoms EXCEPT one. Which one is this EXCEPTION?
    Easy fatigability
    Atrophic glossitis
    Peripheral neuropathy
    Atrophy of the gastric mucosa
    Microcytic hypochromic red blood cells
    Which of the following nerves pierces the thyrohyoid membrane?
    Inferior laryngeal
    Recurrent laryngeal
    External branch of the superior laryngeal
    Internal branch of the superior laryngeal
    Pharyngeal branch of the vagus
    Each of the following conditions involves changes in numbers of cells in an organ or tissue EXCEPT one. Which one is this EXCEPTION?
    Aplasia
    Hyperplasia
    Hypoplasia
    Metaplasia
    The marginal ridges are more prominent on the lingual surface of which of the following incisors?
    Maxillary central
    Mandibular central
    Maxillary lateral
    Mandibular lateral
    Which of the following directly catalyzes urea formation in a cell?
    Urease
    Uricase
    Arginase
    Glutaminase
    Atretic follicles are characteristic of which of the following?
    Integument of scalp
    Thyroid
    Pituitary
    Lymph gland
    Ovary
    Which of the following conditions is a significant risk factor for the development of hepatocellular carcinoma?
    Cholestasis
    Portal hypertension
    Cholelithiasis
    Reye’s syndrome
    Hepatitis C
    Where is the lingual height of contour located on a mandibular first premolar?
    Occlusal third
    Junction of the occlusal and middle thirds
    Middle third
    Junction of the middle and cervical thirds
    Cervical third
    Cigarette smoking has been etiologically linked to each of the following cancers EXCEPT one. Which one is this EXCEPTION?
    Lung
    Colon
    Oral cavity
    Esophagus
    Urinary bladder
    Which of the following teeth has the greatest cervico-occlusal crown height?
    Maxillary first premolar
    Mandibular second premolar
    Maxillary first molar
    Mandibular second molar
    Maxillary second molar
    The oblique ridge of the maxillary molars extends between which two cusps?
    Mesiofacial and distofacial
    Mesiolingual and distolingual
    Mesiolingual and distofacial
    Mesiofacial and meiolingual
    Mesiofacial and distolingual
    A practitioner administers a 90:10 nitrous oxide-oxygen mixture to a patient, causing respiratory depression. Which of the following conditions is likely to result?
    Metabolic acidosis
    Respiratory acidosis
    Metabolic alkalosis
    Respiratory alkalosis
    Test item #’s 161-172 refer to the following testlet
    A 23 year-old female presents with complaints of difficulty in opening her mouth and a low-grade fever of several days’ duration. The medical histroy indicates a recent positive PPD skin test, and the patient is taking rifampin (Rifadin). The extra-oral exam shows diffuse swelling at the angle of the right mandible and lateral neck. Oral exam shows gingival swelling and erythema around partially erupted Tooth #32.
    Rifampin (Rifadin) is effective in treating active tuberculosis because it targets which of the following pathways?
    Mitosis
    Replication
    Translation
    Transcription
    mRNA splicing
    This patient’s internal temperature is monitored by central thermoreceptors located in the
    Medulla
    Cerebellum
    Hypothalamus
    Anterior ituitary
    Posterior pituitary
    MOST plasma cells that form in the cervical lymph nodes will be found in which of the following areas?
    Paracortex
    Lymph nodules
    Medullary cords
    Germinal centers
    Trabecular sinuses
    Which of the following histopathologic findings will characterize lymph node involvement with mycobacterium tuberculosis in the lateral neck?
    Fibrosis and scarring of the lymph node cortex
    Hyperplasia of the cortex and presence of Reed-Sternberg cells
    Granulomas with multinucleate giant cells and caseation necrosis
    Hyperplasia of the cortex and a focally dense infiltrate of neutrophils
    Swelling at the angle of the mandible and the lateral neck MOST likely resulted from deflection of exudates by which of the following structures?
    Sublingual gland
    Mylohyoid muscle
    Hyoglossus muscle
    Buccopharyngeal fascia
    Pterygomandibular raphe
    Each of the following muscles is constrained in function due to the patient’s condition EXCEPT one. Which one is the EXCEPTION?
    Digastric
    Mylohyoid
    Geniohyoid
    Medial pterygoid
    Lateral pterygoid
    This patient’s gingival swelling will elicit sensations of pain that will travel via which of the following?
    Chorda tympani
    Buccal branch of the facial nerve
    Glossopharyngeal nerve
    Buccal nerve
    Temporal branch of the facial nerve
    The tissue swelling associated with inflammation in this patient is due to which of the following factors?
    Vasodilating kinins
    Increased blood pressure
    Increased serum osmolarity
    Decreased capillary permeability
    If Tooth #32 is infected, then the infection will typically spread to each of the following fascial spaces EXCEPT one. Which one is this EXCEPTION?
    Parotid
    Temporal
    Masseteric
    Buccopharyngeal
    Lymphatic fluid from the area of infected Tooth #32 will drain INITIALLY to which of the following nodes?
    Buccal
    Submental
    Deep cervical
    Submandibular
    Superficial cervical
    (I DON’T AGREE WITH THEIR ANSWER SO BE CAREFUL ON THIS WITH THE REAL EXAM. IT MIGHT HELP TO LOOK THIS UP. IF ANYONE HAS ADDITION INFO ON THIS, IT WOULD BE APPRECIATED)
    A radiograph of Tooth #32 shows two well-formed roots. When sectioning this tooth to separate the roots and simplify extraction, which of the following BEST describes how the cut should be made?
    Bucco-lingually through the crown and furcation
    Bucco-lingually through the pulp horns
    Mesio-distally through the crown and furcation
    Mesio-distally through the crown at the level of the CEJ
    Prior to extracting Tooth #32, surgery is done to exopse the entire crown of the tooth. Which of the following should the dentist expect to see?
    The buccal-lingual dimension of the crown is greater than the mesial-distal dimension
    The mesial-distal dimension of the crown is greater that the buccal-lingual dimension
    The buccal-lingual and mesial-distal dimensions of the crown are the same
    The crown of Tooth #32 is smaller than the crown of Tooth #1
    Test item #’s 173-181 refer to the following testlet
    A 7-year-old male with a histroy of asthma presents for an emergency appointment. He suffered a fall in which he struck his anterior maxilla, lacerating his lips. Oral examination reveals bleeding from the gingival sulcus around the maxillary central incisors, and these teeth are mobile. The maxillary lateral incisors are mobile but do not exhibit bleeding. During the intial exam, the patient demonstrates acut dyspnea.
    During the intitial oral examination, the dentist suspects onset of an acut asthmatic attack. Each of the following is a common manifestation of an asthmatic attack EXCEPT one. Which one is this EXCEPTION?
    Airway edema
    Bronchospasm
    Decreased surfactant
    Increased mucous secretion
    Increased airway resistance
    Which of the following immunoglobulin classes is MOST active in this patient’s respiratory difficulties?
    IgD
    IgA
    IgE
    IgM
    IgG
    Treatment of this patient’s respiratory symptoms requires activation of which of the following pathways?
    Cholinergic nicotinic
    Cholinergic muscarinic
    Adrenergic Alpha-1
    Adrenergic Beta-1
    Adrenergic Beta-2
    The immediate consequences of this patient’s respiratory difficulty include each of the following EXCEPT one. Which one is this EXCEPTION?
    Hypoxia
    Tachycardia
    Hypercapnia
    Acute respiratory acidosis
    Increased renal bicarbonate production
    Each of the following statements regarding the pathogenesis of this patient’s respiratory difficulty is correct EXCEPT one. Which one is this EXCEPTION?
    Multinucleated giant cells phagocytize extrinsic antigens
    Protaglandin D elicits bronchoconstriction and vasodilation
    Chemotactic factors recruit and activate eosinophils and neutrophils
    Platelet activating factor aggregates platelets and induces hisamine release
    Leukotrienes C4, D4, and E4 cause prolonged bronchoconstriction and mucin secretion
    Laceration of the patient’s lips resulted in bleeding from which of the following arteries?
    Nasopalatine
    Nasal branches of the facial
    Labial branches of the facial
    Buccal branch of the maxillary
    Incisive branches of the infraorbital
    If there is a fracture of the maxillary bone adjacent to the traumatized central incisors, then nociception terminates centrally within which of the following?
    Trigeminal ganglion
    Spinal tract of V
    Spinal subnucleus oralis of V
    Spinal subnucleus caudalis of V
    Main (chief) sensory nucleus of V
    On a panoramic radiograph of this patient, the dentist will expect to see each of the following features EXCEPT one. Which one is this EXCEPTION?
    Primary maxillary lateral incisors with partially resorbed roots
    Partially erupted maxillary central incisors with incomplete root closure at the apex
    Partially erupted mandibular lateral incisors with incomplete root closure at the apex
    Fully erupted mandibular central incisors with complete root formation and closure at the apex
    Fully erupted mandibular first molars with incomplete root formation and non-closure at the apex
    A radiograph of the maxillary central incisors reveals a small, calcified radiopaque mass between the roots of Teeth #8 and #9. Which of the following is the MOST likely reason for this mass?
    Distodens
    Mesiodens
    Talon cusp
    Dens in dente
    Peg lateral incisor
    Test item #’s 182-195 refer to the following testlet
    A 15-year-old male presents for emergency card. He is non-compliant with his type I diabetes refimen, and he suffered a fall while having an insulin reaction. He struck his chin and lacerated his tongue. Upon opening, his mandible deviates to the left. A panoramic radiograph reveals a fracture of the left condylar neck.
    Before examining this patient, the dentist notes that the standard medical emergency kit contains an ampule of glucagon. For which of the following reasons would glucagon be used?
    Acts as a source of glucose for the hypoglycemic patient
    Promotes glycogen formation in the hyperflycemic patient
    Promotes glycogenolysis in the hypoglycemic patient
    Stimulates secretion of insulin in the hyperglycemic patient
    The patient’s “insulin reaction” represented a sudden fal in blood glucose because he had taken his normal insulin dose but did not eat breakfast. Each of the following is a clincal manifestation of hypoglycemia EXCEPT one. Which one is this EXCEPTION?
    Coma
    Dizziness
    Confusion
    Convulsion
    Hyperventilation
    Which of the following glucose transporters was responsible for the patient’s “insulin reaction”?
    GLUT-1
    GLUT-2
    GLUT-3
    GLUT-4
    GLUT-5
    Which of the following cells found in the pancreas is responsible for secreting insulin?
    Alpha
    Beta
    Delta
    Acinar
    Centroacinar
    Each of the following is a likely long-term complication of poorly controlled type I diabetes mellitus EXCEPT one. Which one is this EXCPETION?
    Pancreatic carcinoma
    Hyaline arteriolosclerosis
    Proliferative retinopathy
    Nodular glomerulosclerosis
    Peripheral symmetric neuropathy
    Sudden onset of a seizure in this patient would MOST likely be due to which of the following?
    Hypoxia
    Ketoacidosis
    Hyponatremia
    Hypoglycemia
    Hyperglycemia
    The patient’s tongue laceration will likely damage taste buds found on?
    Filiform papilla
    Fungiform papilla
    Circumvallate papilla
    Ventrum of the tongue
    Pain impulses from the patient’s fractured mandible are carried by which of the following nerves?
    Lingual
    Inferior alveolar
    Auriculotemporal
    Zygomaticotemporal
    Nerve to lateral pterygoid
    Each of the following events will occur during fracture repair EXCEPT one. Which one is this EXCEPTION?
    Blood clot forms
    Bridging callus forms
    Periosteal callus forms
    New endochondral bone forms
    New osteons grow across the callus
    The deviation of the patient’s mandible is MOST likely due to lack of function of which of the following muscles?
    Left medial pterygoid
    Right medial pterygoid
    Masseter
    Left lateral pterygoid
    Right lateral pterygoid
    Monosynaptic jaw closing reflexes might be disrupted in which of the following areas?
    Locus coenurus
    Globus pallidus
    Motor nucleus of V
    Mesencephalic nucleus of V
    Motor nucleus of VII
    Muscular contractions might result in displacement of the left condyle. Into which of the following areas will the condyle MOST likely be displace?
    Oral cavity
    Maxillary sinus
    Temporal fossa
    Middle ear cavity
    Infratemporal fossa
    With the fracture of the left condyle, the condylar head remains in the mandibular fossa due to which of the following ligaments?
    Periodontal
    Otomandibular
    Stylomandibular
    Sphenomandibular
    Temporomandibular
    Clinical examination revelas that the lingual cusp on Tooth #5 is broken off. This is MOST likely due to wich of the following mandibular movements during trauma?
    Left mesiotrusive
    Right mesiotrusive
    Protrusive
    Left laterotrusive
    Right laterotrusive
    Test item #’s 196-200 refer to the following testlet
    The dentist is called in to assist in the postmortam identifaction of an unknown person. Parts of a cadaver are presented, including portion of the skull with bones, teeth, and intact soft tissue.
    Upon viewing the cadaver, the dentist suddenly feels faint, and experiences vasodepressor syncope. This finding might be assonciated with each of the following EXCEPT one. Which one is this EXCEPTION?
    Pallor
    Diaphoresis
    Decreased heart rate
    Decreased cerevral blood flow
    Increased systmeic blood pressure
    Examination of the right side of the cadaver’s skull reveals a fracture running through the petrotympanic fissure. Which of the following structures is MOST likely affected by such a fracture?
    Chorda tympani
    Auriculotemporal nerve
    Mandibular branch of V
    Middle meningeal artery
    Accessory meningeal artery
    Examination of a remnant of the cranial base exhibits a fracture of the cribiform plate. Damage to this area typically results in which of the following conditions?
    “Tunnel” vision
    Loss of sense of taste
    Loss of sense of smell
    Damage to optic chiasm
    Damage to speech areas
    Examination of a portion of the left mandible shows a torn piece of muscle attached on the medial side near the angle of the mandible. This is which of the following muscles?
    Buccal
    Masseter
    Temporalis
    Medial pterygoid
    Inferior head of the pterygoid
    One piece of examined soft tissue contains obvious glandular tissue. Histological examination reveals that it is composed of purely serous acini. This is MOST likely which of the following glands?
    Buccal
    Parotid
    Sublingual
    Submandibular
    Posterior palatal
     
  3. IndianGraduate

    2+ Year Member

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    dentindi...did u just take all these from a released exam and type these on here? cuz i was doing the released exams and SO many of those seem familiar....but i dont remember which exam its from...do u not have the answers to the released exams?
     
  4. plan

    2+ Year Member

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    i guess it is from pilot paper 2004
     
  5. 32pearls

    7+ Year Member

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    If you could number these questions & answers & space between each set of questions.....it would have been easier to answer
     
  6. dentindi

    2+ Year Member

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    answers r as follows

    What are predominant linkages in glycogen between glucose units?
    Alpha 1,4
    Alpha 1,6
    Beta 1,3
    Beta 1,4
    Beta 1,6

    In fermentation, the final electron acceptor is
    Water
    Oxygen
    Carbon dioxide
    An organic compound
    An inorganic compound

    Aerobic respiration
    Final electron acceptor is O2


    Which of the following primary teeth is MOST likely to have an oblique ridge?
    Maxillary canine
    Maxillary first molar
    Maxillary second molar
    Mandibular first molar
    Mandibular second molar

    Each of the following structures is found in the infratemporal fossae EXCEPT one. Which one is this EXCEPTION?
    Lingual nerve
    Medial pterygoid muscle
    Inferior alveolar nerve
    Pterygopalatine ganglion
    Pterygoid venous plexus

    Each of the following cranial nerves is associated with the cavernous sinus EXCEPT one. Which one is this EXCEPTION?
    Facial
    Abducens
    Trochlear
    Trigeminal
    Oculomotor

    Calcium dipicolinate is present in large amounts in
    Spores
    Flagella
    Mesosomes
    Ribosomes
    Mitochondria

    When compared to the primary mandibular first moral, the primary mandibular second molar normally exhibits a GREATER number of which of the following?
    Oblique ridges
    Roots
    Cusps
    Cervical ridges
    Transverse ridges

    Which of the following describes the movement of glycine molecules in an electric field at a pH of 6.06 (the isoelectric pH for glycine)? The glycine molecules will
    Not move
    Move to the anode
    Move to the cathode
    Move to both anode and cathode

    Zinc is an essential component of which of the following?
    Pepsin
    Amaylase
    Hexokinase
    Adenylate cyclase
    Carbonic anhydrase

    Which of the following cancers typically arises in teenagers and young adults?
    Wilms' tumor
    Angiosarcoma
    Ewing's sarcoma
    Multiple myeloma
    Chronic lymphocytic leukemia

    Each of the following muscles usually appears in the floor of the posterior triangle EXCEPT one. Which one is this EXCEPTION?
    Sternohyoid
    Medius scalene
    Splenius capitis
    Levator scapulae
    Anterior belly of omohyoid

    In an ideal intercuspal relation, the mesiofacial cusp of the maxillary first molar opposes which morphologic entity of the mandiubular first molar?
    Central fossa
    Lingual groove
    Distofacial groove
    Mesiofacial groove

    Three days ago, a patient received her third immunization with tetanus toxoid. What class of antibodies specific for tetanus toxoid would one expect to find in her serum?
    Similar concentrations of IgM and IgG
    High concentrations of both IgM and IgD
    Low concentrations of IgM; high concentration of IgE
    Low concentration of IgM; high concentration of IgG
    High concentration of IgM; low concentration of IgG

    Facilitated diffusion DIFFERS from active transport in that net transport by facilitated diffusion
    Has a transport maximum
    Uses ATP as an energy source
    Requires a concentration gradient
    Occurs as an endergonic (positive G) process

    Mucosa of the anterior two-thirds of the tongue develops primarily from
    Rathke's pouch
    Tuberculum impar
    Foregut endoderm
    Hypobranchial eminence
    Lateral lingual swellings

    Each of the following statements regarding aldosterone is correct EXCEPT one. Which one is this EXCEPTION?
    Is a mineralocorticoid
    Increases Na uptake from the kidneys
    Production is stimulated by angiotensin II
    Is produced in the zona fasciculata of the adrenal cortex

    Interstitial pulmonary inflammation is MOST characteristic of
    Viral pneumonia
    Bacterial pneumonia
    Lung abscess
    Bronchial asthma
    Bronchopneumonia

    The occlusal outline of a mandibular first molar is similar to a
    Circle
    Square
    Hexagon
    Pentagon
    Rhomboid

    Which of the following statements is correct with respect to mastication of food?
    Food is masticated primarily in a border movement
    Food is masticated primarily in lateral contacting movement
    An ideal occlusion is a requisite for masticatory efficiency
    Proper incisor contact is a requisite for masticatory efficiency
    Indigestion is generally related to inadequate mastication of food

    Human papillomaviruses 16 and 18 are strongly correlated with the appearance of
    Genital warts
    Plantar warts
    Cutaneous warts
    Uterine cancer
    Cervical cancer

    The sensory receptors serving the stretch reflex are classified as
    Nociceptors
    Chemoreceptors
    Proprioceptors
    Exteroceptors

    Which of the following muscles participates in flexion at the gleno-humeral and the humero-ulnar joints?
    Deltoid
    Brachialis
    Biceps brachii
    Triceps brachii
    Coracobrachiallis

    During fetal development, blood is shunted from the pulmonary artery to the aortic arch by means of the
    Foramen ovale
    Sinus venosus
    Ductus venosus
    Ductus arteriosus
    Foramen secundum

    Which of the following factors MOST influences the lingual concavity of the maxillary anterior teeth and groove direction of the posterior teeth?
    Anterior guidance
    Angle of the eminence
    Curve of the occlusion
    Sideshift of the mandible (Bennett movement)
    Direction of movement of the rotating condyle

    Rough pneumococci grown in the presence of DNA from dead smooth pneumococci develop capsules. This is an example of bacterial
    Mutation
    Dominance
    Conjugation
    Transduction
    Transformation

    Which of the following base pairs promotes helix stabilization in DNA but does NOT do so in RNA?
    G-C
    A-T
    G-U
    C-T
    A-U

    Blood from the cephalic vein drains into which of the following veins?
    Basilic
    Brachiocephalic
    Axillary
    Internal thoracic
    Superior vena cava

    The junction between the tooth surface and the crevicular epithelium is composed of which of the following?
    Cementoid
    Tight junction
    Intermediate filaments
    Basal lamina-like structure
    Interstitial crevicular fluid

    If the anticodon on transfer RNA is 5' ACG 3' then which of the following is its corresponding codon on messenger-RNA?
    5' CGT 3'
    5' CGU 3'
    5' TGC 3'
    5' UAG 3'
    5' UGC 3'

    On the crown of the primary maxillary first molar, the mesial surface normally
    Is larger than the distal surface of the same tooth
    Exhibits a concave lingual outline
    Is wider occlusocervically than buccolingually
    Exhibits a straight cervical line
    Is wider buccolingually at the occlusal table than at the cervical third

    Staphylococcus aureus MOST commonly causes
    Skin infections
    Septicemia
    Sore throat
    Chronic infections
    Exogenous infections

    Each of the following is characteristic of herpes zoster EXCEPT one. Which one is the EXCEPTION?
    Unilateral
    Usually involves 1-3 dermatomes
    Occurs repeatedly in immunocompetent patients
    Only occurs in an individual having a latent VZV infection
    More common in individuals who are immunocompromised

    Which of the following describes the contact relationship between a maxillary central incisor and a maxillary lateral incisor?
    Contact is offset to the lingual
    Contact is centered incisocervically
    Lingual embrassure is larger than the facial embrasure
    Incisal embrassure is the largest of all the embrasures

    Which of the following shows a relative INCREASE as the dental pulp ages?
    Number of fibroblasts
    Number of odontoblasts
    Number of blood vessels
    Size of the pulp chamber
    Amount of fibrous connective tissue

    The rapid emergence of new strains of human immunodeficiency virus is primarily the result of ------
    The frequent genomic recombination between human immunodeficiency virus and other retroviruses
    Frequent errors in the translation of viral proteins
    The lack of immune response to the viral envelope glycoprotein
    Frequent errors introduced by viral reverse transcriptase
    The imprecision of protein cleavage by viral protease

    Mesial and distal pulp horns are more likely to be found in which of the following teeth?
    Maxillary central incisors
    Mandibular central incisors
    Mandibular canines
    Maxillary first premolars
    Mandibular first premolars

    The major sensory nerve to the parietal pericardium branches from which of the following nerves?
    Vagus
    Muscuophrenic
    Intercostal
    Phrenic
    Internal thoracic

    Which of the following muscles is MOST concerned in quiet respiration?
    Rhomboid
    Diaphragm
    Subclavius
    Sacrospinalis
    Pectoralis major

    Before swallowing can be initialized, afferent information must be received

    From muscle spindles, indicating the consistency of a soft bolus of food
    In a lesser amount from nociceptors indicating a soft bolus of food
    From mucosal mechanoreceptors, indicating the consistency of a soft bolus of food
    From pharyngeal taste receptors, indicating the consistency of a soft bolus of food

    When the mandible moves to the right, the mesiolingual cusp of the maxillary right first molar passes through which groove of the mandibular right first molar?
    Mesiomarginal
    Distofacial
    Mesiofacial
    Lingual
    Central

    The antigenic component of which of the following vaccines is a capsular antigen?
    Influenza
    Poliovirus
    Hepatitis B
    Haemophilus influenza

    Coupled respiration requires each of the following EXCEPT one. Which one is this EXCPETION?
    ADP
    Oxygen
    Carbon dioxide
    Electron donor
    Inorganic phosphate

    As the severity of periodontal disease progresses, there is an increase in plasma cells that produce which of the following?
    sIgA
    IgD
    IgE
    IgG
    IgM

    Which of the following is a complication of cirrhosis?
    Splenic atrophy
    Hepatic angioma formation
    Obstruction of portal circulation
    Increased plasma protein formation
    Decreased central venous pressure

    Which of the following is produced when a mutation occurs in an enzyme controlling a signal pathway involved in cell growth processes?
    Epigene
    Antigene
    Oncogene
    Monogene
    Transgene

    DNA that is complementary to mRNA can be made using which of the following?
    A plasmid
    DNA ligase
    A retrovirus
    RNA polymerase
    Reverse transcriptase

    Which of the following groups of organs is retroperitoneal?
    Pancrease, transverse colon, and descending colon
    Pancrease, stomach, and ovary
    Kidney, transverse colon, and ovary
    Ureter, gallbladder, and transverse colon
    Kidney, adrenal, and rectum

    Each of the following derives from a pharyngeal pouch EXCEPT one. Which one is this EXCEPTION?
    Thymus
    Parathyroid
    Parotid gland
    Auditory tube
    Palatine tonsil

    SEE question 49 (Diagram involved)
    Which of the following is caused by vitamin D deficiency in adults?
    Rickets
    Myxedema
    Acromegaly
    Osteomalacia
    Osteitis fibrosa cystica

    In unilateral balanced occlusion, contact between lower buccal cusps and upper buccal cusps, along with simultanwous contact between lower lingual cusps and upper lingual cusps, will MOST likely occur in which of the following types of mandibular movements?
    Laterotrusive
    Mediotrusive
    Straight retrusive
    Straight protrusive

    The buccal mucosa typically has which of the following epithelia?
    Simple columnar
    Pseudostratified columnar
    Non-keratinzed, stratified squamous
    Parakeratinized, stratified squamous
    Orthokeratinized, stratified squamous

    The apex of the horizontal plane Gothic-arch tracing represents which of the following positions?
    Maximum opening
    Centric relation
    Lateral protrusive
    Rest position

    Which of the following streptococcal virulence factors acts as a superantigen, mediating a variety of cytokine-induced effects that can result in life-threatening disease?
    Pyrogenic exotoxin
    Hyaluronidase
    Streptokinase
    Streptolysin O

    Preganglionic parasympathitic fibers that synapse in the pterygopalatine ganglion travel in which of the following nerves?
    Maxillary
    Lesser palatine
    Lesser petrosal
    Greater palatine
    Greater petrosal

    Initiation of calcification for the mandibular central incisor normally occurs at
    3-4 months of age
    1 year of age
    2-3 years of age
    4-5 years of age
    6-7 years of age

    Each of the following viruses is potentially capable of causing cell transformation EXCEPT one. Which one is this EXCEPTION?
    Retrovirus
    Herpesvirus
    Picornavirus
    Hepatitis B virus
    Human papillomavirus

    Of the primary maxillary teeth, the cervical ridge would stand out MOST prominently as a distinct entity on which surface of which molar?
    First Distofacial
    First Mesiofacial
    Second Distofacial
    Second Mesiolingual
    Second Distolingual

    IL-1 is primarily produced by which of the following?
    Neutrophils
    Macrophages
    Plasma cells
    T-helper cells
    T-suppressor cells

    During endodontic therapy, one will usually find two pulp canals in which of the following?
    Mandibular canine
    Distofacial root of a maxillary molar
    Distal root of a mandibular first molar
    Mesial root of a mandibular first molar
    Lingual root of a maxillary first molar

    Which of the following statements BEST applies to saliva?
    Phosphate is the main pH buffer
    Supplies sialate for additional mucins
    Main source of enzymes for protein digestion
    Supplies calcium and phosphate for remineralization
    Undersaturated with respect to hydroxyapatite at neutral pH

    Smooth muscle contains each of the following muscle proteins EXCEPT one. Which one is this EXCEPTION?
    Actin
    Myosin
    Troponin
    Tropomyosin

    Cell bodies of neurons mediating proprioception from the periodontal lifament of the maxillary first molar lie in the
    Semilunar ganglion
    Motor nucleus of V
    Spinal nucleus of V
    Chief sensory nucleus of V
    Mesencephalic nucleus of V

    Which of the following can be used to distinguish the palatine tonsil from the pharyngeal tonsil on the histologic level?
    General shape of the tonsil
    Number of lymphatic nodules
    Type of epithelium associated with it
    Type of lymphocytes present
    Presence or absence of Hassall's corpuscles
    The movement in the upper compartment of the temporomandibular joint is rotation and translation.

    The movement in the lower compartment is translation.

    Both statements are TRUE
    Both statements are FALSE
    The first statement is TRUE, and the second is FALSE
    The first statement is FALSE, and the second is TRUE

    As blood flows through the periodontal membrane, tremendous pressures occur in response to forceful occlusion. Blood flow is temporarily reduced, but platelets do not aggregate because of the presence of
    Ca
    ADP
    Thrombin
    Thromboxane A2
    Prostacyclin (PgI2)

    Which of the following parts of the hypophysis is the site of oxytocin release?
    Pars nervosa
    Infundibulum
    Pars distalis
    Pars tuberalis
    Pars intermedia

    The non-working condyle performs which of the following movements?
    Straight forward
    Forward and downward
    Downward, forward, and lateral
    Downward, backward, and medial
    Downward, forward, and medial

    Which of the following substances is the predominant source of ATP at MODERATE levels (for greater than 60 minutes) of activity?
    Amino acids
    Fatty acids
    Carbohydrates
    Proteins

    Which of the following premotes the release of bile from the gallbladder?
    Gasrin
    Secretin
    Galla
    Bombesin
    Cholecystokinin

    Which of the following teeth represents the one MOST likely to present with three roots?
    Mandibular central incisor
    Mandibular second premolar
    Mandibular canine
    Maxillary first premolar
    Maxillary second premolar

    Which of the following chemical agents is approved as an immersion sterilant?
    Iodophors
    Ethyl alcohol
    Glutaraldehydes
    Synthetic phenolics
    Sodium hypochlorite

    Granulation tissue is comprised of each of the following components EXCEPT one. Which one is this EXCEPTION?
    Fibroblasts
    Plasma cells
    Capillary buds
    Endothelial cells
    Newly formed collagen

    Following eruption and initial occlusal contact in the oral cavity, a tooth will continue to erupt in order to compensate for occlusal wear. In response to this continuous eruption, which of the following is deposited at the apex of the root?
    Primary dentin
    Secondary dentin
    Reparative dentin
    Cellular cementum
    Acellular cementum

    Which of the following would produce the greatest DECREASE in resistance in a single artery 2 mm long and with a radius of 1.2 mm?
    A halving in length
    A doubling in length
    An increase in radius by a factor of 2
    A decrease in blood viscosity by a factor of 2

    Which of the following BEST describes a centric holding cusp of a mandibular left second molar?
    It is the distofacial cusp and occludes in the embrassure between maxillary first and second molars
    It is the distofacial cusp and occludes in the central fossa of a maxillary second molar
    It is the distolingual cusp and occludes in the embrassure between maxillary first and second molars
    It is the distolingual cusp and occludes in the central fossa of a maxillary second molar

    Oral streptococci are usually
    Gamma-hemolytic
    Alpha-hemolytic
    Beta-hemolytic
    Non-hemolytic

    The cell membrane is LEAST permeable to which of the following substances?
    O2
    CO2
    H2O
    Sodium
    Ethanol

    Which of the following types of dentin is the MOST highly mineralized?
    Carious
    Predentin
    Intertubular
    Interglobular
    Intra(peri)tubular

    Each of the following can be found in the dental pulp EXCEPT one. Which one is this EXCEPTION?
    Nerve tissue
    Blood vessels
    Cementoblasts
    Lymph vessels

    According to the Spaulding Classification System for contaminated items and srufaces, semi-critical items should be reprocessed by
    Exposure to ethylene oxide
    A spray-wipe-spray technique
    Immersion in a tuberculocidal disinfectant
    Washing with a chlorhexidine fluconate disinfectant
    Heat stabilization if the material is heat stable

    In the contractile cycle, the dissociation of the actomyosin complex results MOST immediately from
    ATP hydrolysis
    Release of ATP hydrolysis products
    ATP replacing ADP on the myosin heads
    Tilting of the myosin heads (crossbridges)

    Which of the following represents the consequence of the fact that DNA strans are complementary?
    Hairpin loop structures can be generated
    They will always have identical sequences
    Separated strands are able to reassociate
    They cannot get back together once separated

    Which of the following predominates in steroid producing cells?
    Smooth endoplasmic reticulum
    Rough endoplasmic reticulum
    Golgi apparatus
    Phagosomes
    Nucleolus

    The spacing between anterior teeth in the primary dentition is MOST frequently caused by
    Thumb-sucking
    Tongue thrusting
    Transseptal gingival fibers
    The growth of the dental arches
    The pressure form succedaeous teeth

    Each of the following types of cells is phagocytic EXCEPT one. Which one is this EXCEPTION?
    Monocyte
    Histiocyte
    Neutrophil
    Macrophage
    Lymphocyte

    Which of the following is MOST likely to promote depolymerization of extracellular matrix?
    Corisone
    Collagenase
    Chymotrypsin
    Hyaluronidase


     
  7. lillieflower

    lillieflower D1 cruisin'
    2+ Year Member

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    In the contractile cycle, the dissociation of the actomyosin complex results MOST immediately from
    ATP hydrolysis
    Release of ATP hydrolysis products
    ATP replacing ADP on the myosin heads
    Tilting of the myosin heads (crossbridges)


    The spacing between anterior teeth in the primary dentition is MOST frequently caused by
    Thumb-sucking

    Tongue thrusting
    Transseptal gingival fibers
    The growth of the dental arches
    The pressure form succedaeous teeth
     
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  8. aphistis

    Moderator Emeritus 10+ Year Member

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    The forums aren't intended to be used as exam file warehouses. Closing.
     
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