qs from nbde part 1

[sonu_9]

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1}Mesial and distal pulp horns are more likely to be found in which of the following teeth?

– a.Maxillary central incisors
b.Mandibular central incisors
c.Mandibular canines
d.Maxillary first premolars
e.Mandibular first premolars


2}Before swallowing can be initialized, afferent information must be received
a.From muscle spindles, indicating the consistency of a soft bolus of food
b.In a lesser amount from nociceptors indicating a soft bolus of food
c.From mucosal mechanoreceptors, indicating the consistency of a soft bolus of food
d.From pharyngeal taste receptors, indicating the consistency of a soft bolus of food

3}Each of the following muscles usually appears in the floor of the posterior triangle EXCEPT one. Which one is this EXCEPTION?
a.Sternohyoid
b.Medius scalene
c.Splenius capitis
d.Levator scapulae
e.Anterior belly of omohyoid
4.Which of the following teeth represents the one MOST likely to present with three roots

A.Mandibular central incisor
B.Mandibular second premolar
C.Mandibular canine
D.Maxillary first premolar
E.Maxillary second premolar

Which of the following chemical agents is approved as an immersion sterilant?
A.Iodophors
B.Ethyl alcohol
C.Glutaraldehydes
D.Synthetic phenolics
E.Sodium hypochlorite

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

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


pls solve them... thanks

 

[swetha_dentist]

1}Mesial and distal pulp horns are more likely to be found in which of the following teeth?
c.Mandibular canines

2}Before swallowing can be initialized, afferent information must be received
c.From mucosal mechanoreceptors, indicating the consistency of a soft bolus of food

4.Which of the following teeth represents the one MOST likely to present with three roots
D.Maxillary first premolar

Which of the following chemical agents is approved as an immersion sterilant?
C.Glutaraldehydes

Each of the following can be found in the dental pulp EXCEPT one. Which one is this EXCEPTION?
C.Cementoblasts

According to the Spaulding Classification System for contaminated items and srufaces, semi-critical items should be reprocessed by
Washing with a chlorhexidine fluconate disinfectant

Which of the following represents the consequence of the fact that DNA strans are complementary?
Separated strands are able to reassociate?


pls solve them... thanks

-----------

 

[winnipeg]

Even i had the same questions.

 

[swetha_dentist]

3}Each of the following muscles usually appears in the floor of the posterior triangle EXCEPT one. Which one is this EXCEPTION?
a.Sternohyoid

 

[dr.reach]

1) Ulcers of recurrent herpes occur on masticatory mucosa. Herpetic ulcers could occur in which the following locations?
A. Buccal mucosa
B. Labial mucosa
C. Hard palatal mucosa
D. mucosa of the soft palate
E. mucosa of the floor of the mouth


2)Bone tissue increases in size by which of the following means?

A. Action of osteoclasts
B. Mitotic division of osteocytes
C. Appositional growth by osteoblasts
D. Interstitial growth by osteoblasts


3)An example of primary active transport is the movement of

A. glucose into muscle
B. Potassium into a nerve cell
C. proteins across capillaries
D. sodium into an endothelial cell
E. oxygen across the alveolar wall



4)At which stage in the process of gene cloning are restriction nucleases used?

A. Isolation of mRNA
B. Synthesis of double-stranded cDNA
C. insertion of the cDNA into the Vector DNA
D. Expression of the cloned gene by the bacteria
E. introduction of recombinant DNA into a bacteria cell




5)Which of the following amino acids has a hydroxyl group that sometimes participates in the enzyme reactions?

A. Serine
B. Alanine
C. Glycine
D. Proline
E. Arginine




6) Which of the following compounds is direct involved in the action of hormones on their target cells?

A. ATP
B. UTP
C. AMP (adenosine-5’-monophoshate)
D. UDPG (uridine diphosphoglucose)
E. Cyclic AMP (adenosine-3’,5’-monophoshate)


7) Reduced serum potassium (hypokalemia) might produce which of the following results?

A. Reduced membrane threshold potential
B. Elevated membrane threshold potential
C. Hyperpolarized cell membrane potential
D. Hypo polarized cell membrane potential
E. Hyperactive neuromuscular reflexes



8) Which of the following represents the compounds that contains an active (labile) methyl group?

A. Serine
B. Creatine
C. Methionine
D. S-adenosyl Methionine
E. 5,10- methylene tetrahydrofolate

9) An important early event inn the chemotactic process is cellular adherence to vascular endothelium, The upregulation of endothelial adhesion molecules (ICAM-1 and VCAM-1) is in part a response to

A. cytokine stimulation
B. Iysozyme production
C. mast cell degranulation
D. antibody binding of endothelial Fc receptors
E. protease inhibition by serum anti-proteases



10) Each of the following is necessary for viral antigen recognition by CD4 T-helper cells except one. Which one is this Exception?

A. viral replication in host cells
B. Cleavage of viral proteins into small peptides
C. Transport of viral peptides to a cell surface by MHC class II molecules
D. Binding of the T- cells TCR to a MHC class II bound viral peptides
E. Internalization of the virus (or viral protein) by an antigen presenting cell

11) The microflora of the healthy gingival sulcus is predominantly

A. spirochetes and yeasts
B. gram-positive facultative rods and spirochetes
C gram-positive facultative cocci and filamentous bacteria
D. gram-negative anaerobic rods and fusobacteria
E. gram-negative anaerobic cocci and gram-positive facultative cocci


12) Which of the following is chiefly an extravascular event?

A. stasis
B. Hyperemia
C Chemotaxis
D. Margination
E. pavementing

13) Which of the following statements BEST describes patients who develop meningitis following mumps, coxsackieevirus, or echovirus infections?

A. Sensitive to viral toxins
B. Experience mortality rate of 75%
C Rarely develop permanent neural damage
D. Subject to exacerbations once that latent virus is activated
E. Most often initially infected by blood containing the virus

plz post answers
thanks

 

[composit16]

1) Ulcers of recurrent herpes occur on masticatory mucosa. Herpetic ulcers could occur in which the following locations?
A. Buccal mucosa
B. Labial mucosa
C. Hard palatal mucosa----ans
D. mucosa of the soft palate
E. mucosa of the floor of the mouth


2)Bone tissue increases in size by which of the following means?

A. Action of osteoclasts
B. Mitotic division of osteocytes
C. Appositional growth by osteoblasts
D. Interstitial growth by osteoblasts----ans


3)An example of primary active transport is the movement of

A. glucose into muscle
B. Potassium into a nerve cell-----ans
C. proteins across capillaries
D. sodium into an endothelial cell
E. oxygen across the alveolar wall



4)At which stage in the process of gene cloning are restriction nucleases used?

A. Isolation of mRNA
B. Synthesis of double-stranded cDNA
C. insertion of the cDNA into the Vector DNA
D. Expression of the cloned gene by the bacteria
E. introduction of recombinant DNA into a bacteria cell




5)Which of the following amino acids has a hydroxyl group that sometimes participates in the enzyme reactions?

A. Serine----ans
B. Alanine
C. Glycine
D. Proline
E. Arginine




6) Which of the following compounds is direct involved in the action of hormones on their target cells?

A. ATP
B. UTP
C. AMP (adenosine-5’-monophoshate)
D. UDPG (uridine diphosphoglucose)
E. Cyclic AMP (adenosine-3’,5’-monophoshate)---ans


7) Reduced serum potassium (hypokalemia) might produce which of the following results?

A. Reduced membrane threshold potential
B. Elevated membrane threshold potential
C. Hyperpolarized cell membrane potential
D. Hypo polarized cell membrane potential
E. Hyperactive neuromuscular reflexes



8) Which of the following represents the compounds that contains an active (labile) methyl group?

A. Serine
B. Creatine
C. Methionine
D. S-adenosyl Methionine----ans
E. 5,10- methylene tetrahydrofolate

9) An important early event inn the chemotactic process is cellular adherence to vascular endothelium, The upregulation of endothelial adhesion molecules (ICAM-1 and VCAM-1) is in part a response to

A. cytokine stimulation
B. Iysozyme production
C. mast cell degranulation
D. antibody binding of endothelial Fc receptors
E. protease inhibition by serum anti-proteases



10) Each of the following is necessary for viral antigen recognition by CD4 T-helper cells except one. Which one is this Exception?

A. viral replication in host cells
B. Cleavage of viral proteins into small peptides
C. Transport of viral peptides to a cell surface by MHC class II molecules
D. Binding of the T- cells TCR to a MHC class II bound viral peptides
E. Internalization of the virus (or viral protein) by an antigen presenting cell---ans

11) The microflora of the healthy gingival sulcus is predominantly

A. spirochetes and yeasts
B. gram-positive facultative rods and spirochetes
C gram-positive facultative cocci and filamentous bacteria
D. gram-negative anaerobic rods and fusobacteria
E. gram-negative anaerobic cocci and gram-positive facultative cocci


12) Which of the following is chiefly an extravascular event?

A. stasis
B. Hyperemia
C Chemotaxis---ans
D. Margination
E. pavementing

13) Which of the following statements BEST describes patients who develop meningitis following mumps, coxsackieevirus, or echovirus infections?

A. Sensitive to viral toxins
B. Experience mortality rate of 75%
C Rarely develop permanent neural damage
D. Subject to exacerbations once that latent virus is activated
E. Most often initially infected by blood containing the virus

these are ans i think could be but i am not sure
someone please cross check

 

[HIM0098]

Ulcers of recurrent herpes occur on masticatory mucosa. Herpetic ulcers could occur in which the following locations?
A. Buccal mucosa
B. Labial mucosa
C. Hard palatal mucosa
D. mucosa of the soft palate
E. mucosa of the floor of the mouth

Decks card mention it occurs in mucocutanous junction of lip..????


2)Bone tissue increases in size by which of the following means?

A. Action of osteoclasts
B. Mitotic division of osteocytes
C. Appositional growth by osteoblasts
D. Interstitial growth by osteoblasts---- inLength

I recorrected my self...

3)An example of primary active transport is the movement of

A. glucose into muscle
B. Potassium into a nerve cell
C. proteins across capillaries
D. sodium into an endothelial cell
E. oxygen across the alveolar wall

Primary active transport involves using energy (usually through ATP hydrolysis) at the membrane protein itself to cause a conformational change that results in the transport of the molecule through the protein. The most well-known example of this is the Na+-K+ pump. The Na+-K+ pump is an antiport, it transports K+ into the cell and Na+ out of the cell at the same time, with the expenditure of ATP.




4)At which stage in the process of gene cloning are restriction nucleases used?

A. Isolation of mRNA
B. Synthesis of double-stranded cDNA
C. insertion of the cDNA into the Vector DNA
D. Expression of the cloned gene by the bacteria
E. introduction of recombinant DNA into a bacteria cell



5)Which of the following amino acids has a hydroxyl group that sometimes participates in the enzyme reactions?

A. Serine----ans
B. Alanine
C. Glycine
D. Proline
E. Arginine

Also Threonine have Hyroxyl group


6) Which of the following compounds is direct involved in the action of hormones on their target cells?

A. ATP
B. UTP
C. AMP (adenosine-5'-monophoshate)
D. UDPG (uridine diphosphoglucose)
E. Cyclic AMP (adenosine-3',5'-monophoshate)

since some hormones can't cross cell membrane, they activate cAMP to carry their effects. Its main purpose is the activation of protein kinases


7) Reduced serum potassium (hypokalemia) might produce which of the following results?

A. Reduced membrane threshold potential
B. Elevated membrane threshold potential
C. Hyperpolarized cell membrane potential
D. Hypo polarized cell membrane potential
E. Hyperactive neuromuscular reflexes



8) Which of the following represents the compounds that contains an active (labile) methyl group?

A. Serine
B. Creatine
C. Methionine
D. S-adenosyl Methionine----ans
E. 5,10- methylene tetrahydrofolate

9) An important early event inn the chemotactic process is cellular adherence to vascular endothelium, The upregulation of endothelial adhesion molecules (ICAM-1 and VCAM-1) is in part a response to

A. cytokine stimulation not sure
B. Iysozyme production
C. mast cell degranulation
D. antibody binding of endothelial Fc receptors
E. protease inhibition by serum anti-proteases



10) Each of the following is necessary for viral antigen recognition by CD4 T-helper cells except one. Which one is this Exception?

A. viral replication in host cells
B. Cleavage of viral proteins into small peptides
C. Transport of viral peptides to a cell surface by MHC class II molecules
D. Binding of the T- cells TCR to a MHC class II bound viral peptides
E. Internalization of the virus (or viral protein) by an antigen presenting cell

Step of MHC II CD4 recongnition: E, B, C, D. According to USMLE step 1 the virus can replicate as much as it want, since CD4 will only recognize it if there is MHC II attached to to the antigen( viral protein) .

11) The microflora of the healthy gingival sulcus is predominantly
A. spirochetes and yeasts
B. gram-positive facultative rods and spirochetes
C gram-positive facultative cocci and filamentous bacteria
D. gram-negative anaerobic rods and fusobacteria
E. gram-negative anaerobic cocci and gram-positive facultative cocci


12) Which of the following is chiefly an extravascular event?

A. stasis
B. Hyperemia
C Chemotaxis---ans
D. Margination
E. pavementing

13) Which of the following statements BEST describes patients who develop meningitis following mumps, coxsackieevirus, or echovirus infections?

A. Sensitive to viral toxins
B. Experience mortality rate of 75%
C Rarely develop permanent neural damage
D. Subject to exacerbations once that latent virus is activated
E. Most often initially infected by blood containing the virus

Herpes simplex virus 2, and less so, herpes simplex virus 1, are important causes of recurrent lymphocytic meningitis. And Viral meningitis is not deadly. Maybe bacteria meningitis


I am also not sure, I had to hit the kaplan book, recheck my answer please.

 

[HIM0098]

1}Mesial and distal pulp horns are more likely to be found in which of the following teeth?

– a.Maxillary central incisors
b.Mandibular central incisors
c.Mandibular canines
d.Maxillary first premolars
e.Mandibular first premolars

My reason for choosing a: mandilbe incisor no mamelon and it is stright , and the rest their pulp horn is facio-lingually located, except for canin is pointed M-D and F-L


2}Before swallowing can be initialized, afferent information must be received

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

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

All books said that these two are seen in Anterior triangle, and that only these muscles make the floor of the posterior triangle:

splenius capitis (sc)
levator scapulae (ls)
scalenus posterior (sp)
scalenus medius (sm)
scalenus anterior (sa)
inferior belly of omohyoid (io

but if I am going to choose it will be based on location, so anterior digastric is way high to be a floor for posterior triangle

4.Which of the following teeth represents the one MOST likely to present with three roots

A.Mandibular central incisor
B.Mandibular second premolar
C.Mandibular canine
D.Maxillary first premolar
E.Maxillary second premolar

Which of the following chemical agents is approved as an immersion sterilant?
A.Iodophors
B.Ethyl alcohol
C.Glutaraldehydes
D.Synthetic phenolics
E.Sodium hypochlorite

Each of the following can be found in the dental pulp EXCEPT one. Which one is this EXCEPTION?
A.Nerve tissue
B.Blood vessels
C.Cementoblasts
D.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-- Non critical { examination table, blood pressure cuff}
Immersion in a tuberculocidal disinfectant
Washing with a chlorhexidine fluconate disinfectant
Heat stabilization if the material is heat stable--- Critical itmes

decks: Semi critical , use high level disinfection( either chemical or heat).

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


please check and let me know

 

[composit16]

hi HIM0098
i think ans for
Ulcers of recurrent herpes occur on masticatory mucosa. Herpetic ulcers could occur in which the following locations should be hard palate mucosa


Recurrent herpes simplex infections seldom occur intraorally. When they do, they usually involve mucosa attached to bone, such as gingiva or hard palate
http://dentistry.ouhsc.edu/intranet-Web/ContEd/OPCE/RHSI.html

 

[dr.reach]

hi composit16& him0068
thanks a lot for ur answers

 

[dr.reach]

hi composit16
i think the qs is asking abt primary lesions
plz let me know if i am wrong

 

[dr.reach]

1 Reduced serum potassium (hypokalemia) might produce which of the following results?

A. Reduced membrane threshold potential
B. Elevated membrane threshold potential
C. Hyperpolarized cell membrane potential
D. Hypo polarized cell membrane potential
E. Hyperactive neuromuscular reflexes

2 An important early event inn the chemotactic process is cellular adherence to vascular endothelium, The upregulation of endothelial adhesion molecules (ICAM-1 and VCAM-1) is in part a response to

A. cytokine stimulation
B. Iysozyme production
C. mast cell degranulation
D. antibody binding of endothelial Fc receptors
E. protease inhibition by serum anti-proteases

3 The microflora of the healthy gingival sulcus is predominantly

A. spirochetes and yeasts
B. gram-positive facultative rods and spirochetes
C gram-positive facultative cocci and filamentous bacteria
D. gram-negative anaerobic rods and fusobacteria
E. gram-negative anaerobic cocci and gram-positive facultative cocci
can someone plz explain
thanks

 

[dr.reach]

someone?

 

[me2005]

1)C. Hyperpolarized cell membrane potential
2)A. cytokine stimulation
3)gram-positive facultative cocci and filamentous bacteria

 

[dr.reach]

hi me2005

thanks a lot
can u plz explain ur answer
regards
dr.reach