Part 1 Qns need answers

Ans 3)
sickle cell hemoglobin differed from normal hemoglobin by a single amino acid, the number 6 position in the beta chain of hemoglobin. That one small molecular difference made the enormous difference in people's lives between good health and disease.Deoxygenated sickle-cell anemia Hb was much less soluble and formed "one-dimensional" crystals, leading to the well-known distortion of red cells in the disease;

 

Vasodilation and increased vascular permeability lasting for several days in an area of inflammation indicates what-
a.Endothelial cell damage and disruption
b.release of bradykinin
c.formation of granulation tissue
Ans given is a.(which could be wrong too) Can anyone explain the correct ans.

 

the correct answer would be 3)..

 

1) Which of the foll. statements best describes pts. who devp. meningitis following mumps, coxsackie or echovirus infections

A. sensitive to viral toxins
B. experience mortality rate of 75%
C. rarely devp. permanent neural damage
D. subject to exacerbations once latent virus is activated
E. most often initially infected by blood containing virus

2) Infection with Histoplasma capsulatum in normal healthy individuals is

A. rapidly spreading disease
B. self limiting benign disease
C. disease localized in blood

3) Which symptom is not attributable to hepatic failure

A. gynecomastia
B. Mallory bodies

 

thanx want2fly...

some more quest..

1. Vasodilatation and increased vascular permeability lasting for several days in an area of inflammation indicate

A. release of bradykinin
B. formation of granulation tissue
C. endothelial cell damage and disruption

2. Bone lesion with radio opaque structures radiating frm the periphery is

A. Osteoblastoma
B. Multiple myeloma
c. Osteitis deformans

3. most reliable criterion for pathogenicity of stahylococci

A. hemolysis
B. pigment
C. coagulase production
d. mannitol fermentation
e. liquefaction of gelatin

 

according to me

 

2. Osteosarcoms has typical sunburst appearance or radioopaque st. radiating all around.
3. Coagulase production.
Someone help with que 1 please.

 

hello guys....

could someone explain these answers to me. They dont seem correct to me. pls help...

1. Ligaments associated with the TMJ serve to
a. Inhibit normal masticatory cycle
b. Protect supporting & surrouding tissues from damages
c. Assist musculature in producing moment
Ans: b

2. The function of which of the following types of nucleic acid is to acticate and select specific amino acids for protein synthesis
a. rRNA
b. tRNA
c. mRNA
Ans: b

3. If the molar percentage of Adenine in a native DNA specimen is 22%, molar content of Guanine is
a. 22%
b. 28%
c. 78%
Ans: b

4. Blocking hypothalamic-hypophyseal venus portal system increases secretion of
a. Prolactin
b. Oxytocin
c. ACTH
d. TSH
Ans: a

5. Which of the following plays greatest role in dis-occluding the posterior teeth latero protrusive movement
a. Anterior guidance
b. posterior guidance
c. bennett side shift
d. inter-condylar distance
Ans: a

6. Viewed from the occlusal, the basic coronal outlineof a mandibular second pre-molar is
a. rhomboidal
b. pentagonal
c. rectangular
Ans: b

Thanks in advance...

 

In my opinion all are correct except
5.c bennett side shift

 

hello yuva doc....
wud u plz b kind enough 2 xplain dem..........plz...........
thanks a ton!!!

 

Quote:
Originally Posted by Venkatcpp
hello guys....

could someone explain these answers to me. They dont seem correct to me. pls help...

1. Ligaments associated with the TMJ serve to
a. Inhibit normal masticatory cycle
b. Protect supporting & surrouding tissues from damages
c. Assist musculature in producing moment
Ans: b
i thought its c.....plz xplain....

2. The function of which of the following types of nucleic acid is to acticate and select specific amino acids for protein synthesis
a. rRNA
b. tRNA
c. mRNA
Ans: b
i thought it was mRNA.....plz do xplain y m wrong...

3. If the molar percentage of Adenine in a native DNA specimen is 22%, molar content of Guanine is
a. 22%
b. 28%
c. 78%
Ans: b
i dont kno how 2 calclate dis... plz help ....

4. Blocking hypothalamic-hypophyseal venus portal system increases secretion of
a. Prolactin
b. Oxytocin
c. ACTH
d. TSH
Ans: a.. but how????

5. Which of the following plays greatest role in dis-occluding the posterior teeth latero protrusive movement
a. Anterior guidance
b. posterior guidance
c. bennett side shift
d. inter-condylar distance
Ans: a i think c....

6. Viewed from the occlusal, the basic coronal outlineof a mandibular second pre-molar is
a. rhomboidal
b. pentagonal
c. rectangular
Ans: b....4rm occlusal view how can it be pentagonal....havin 5 sides...?????

Thanks in advance...

plz do xplain dem 2 me........thanks

 

Hi,

if Adenine is 22%-Thymine is 22%=44%.
100-44=56.
so.....guanine and cytosine makes 56%...i.e.56/2=28.

so G is 28% -C is 28%.

hope this helps.

 

i think it shud be pancreas
see this linkhttp://www.cancer.gov/cancertopics/factsheet/Tobacco/cancer

 

anya.....thanks a ton!!!!

 

HI Old Mirage!

2) Infection with Histoplasma capsulatum in normal healthy individuals is

A. rapidly spreading disease
B. self limiting benign disease
C. disease localized in blood

I believe the ans for this is b)
in an immunocompromised patient the disease is rapidly spreading an disseminated.this is one of the common systeemic inf in AIDS.

3) Which symptom is not attributable to hepatic failure

A. gynecomastia
B. Mallory bodies

Mallory bodies are found in both Hepatic Renal failure!
wat are the other options in the question?

 

hi..
even i feel the answer to 2) is b. but really not sure b/w a. and b.

The options for symptoms for hepatic failure are

A. asterixis
B. Hypoalbuminemia
C. gynecomastia
D. Mallory bodies
E. spider telangiectasia

i think it should be C., coz all the others are def. the symptoms..

 

in sickel cell,my friend,actually heme synthesis defect,so they cant tolerate
o2 tension,so make sickel that precipitate to erythroblast and thats why not soluble.thats 100 percent correct.thats real mechanism .

 

answer is a.maloory mean fatty liver,so in liver fail,its cause fatty liver.

 

hi for t rna,its carry 2 arm,one for anticodon,and one for aminoacid selection.t rna acceptor arm select aminoacid and activete it .
ans for que 4 is prolactin beceuse it secrete prolactin inhibit factor.if its block so not longer inhibit prolactin and its secreted lot.so simple.
think for que 5 is lever action.u seat one side ,other side is come up .like that.
for last que,mesial side ,lateral side ,buccal divide into 2 by slope ridge and lingual side .ok 5 side.its easy,ask me whatever i can solve anything because i did worldwide basics only.i need to check it my [email protected]

 

thanx yuvadoc.
i think u r perfectly right for 2.
as for 3., still not sure, bcoz it asks for staphylococci in general, coagulase is prod. only by S. aureus and S. epidermis..some1 correct me if wrong..

 

thanx yuvadoc.
i think u r perfectly right for 2.
as for 3., still not sure, bcoz it asks for staphylococci in general, coagulase is prod. only by S. aureus and S. epidermis..some1 correct me if wrong..

 

hi ans for 2 is osteoblastoma is a subtype of osteosarcom which have codman triangle thank radiating lines from periosteal surface,
ok.final.bye

 

thanks so very much....!!!!!!!

 

Explanation for Que. 1--
The ligaments, being fibrous connective tissue in composition,
play no role in movement of the condyle. Muscular tissue is necessary for this movement,
specifically fibers from the upper head of the lateral pterygoid muscle. There is disagreement
among anatomy sources as to the function or role of the ligaments. None give the ligaments
an extremely important function, but most claim that they help limit motion of the mandible
beyond a certain point, or act as barriers to excessive forward or downward motion. Others
give the ligaments a general strengthening function which adds stability to the joint.

 

thanks yuva doc....

 

hello guys...
here r sum Qs, i came across in da Q papers...was hopin... sum 1 cud help me i marked da answers i thought wer correct...lemme kno if m wrong...
thanks a lot in advance......
i hav marked da ans i think r rite... plz help...
1. To determine the bacteriologic purity of metropolitan water supplies, sanitary engineers routinely check the water for the presence of which of the following:
a. Escherichia coli
b. Salmonella typhi(ans)
c. Giardia Lmablia
d. Entamoeba histolytica
e. Shigells dysenteriae

2. Which of the following primary grooves uniting in the dispal pit on the occlusal surface of the mandibular second molar represents the one that normally has no counterpart in the distal pit of the first molar?
a. Distolingual
b. DF Triangular
c. DL Triangular
d. Distal Marginal
e. Distal portion of the central

3. On the crown of an incisor, which of the following features separates the labial lobes?
a. Mamelons
b. Central Groove(ans)
c. Lingual Groove
d. Facial Developmental Depressions

4. When viewed from the sagittal plane and progressing anteriorly, the axial inclination of the anterior teeth inclines
a. lingually
b. distally
c. mesially
d. facially(ans)

5. Which of the following is the SMALLEST root that is on a maxillary first molar?
a. DF(ans)
b. DL
c. MF
d. ML
e. Lingual

6. In a left lateral movement, which cusp of the mandibular right first molar has the potential to contact the mesiolingal cusp of the maxillary right first molar?
a. Distal
b. Distofacial(ans)
c. Mesiolingual
d. Distolingual

7. What approximate percentage of the total buccolingual dimension of a posterior tooth does the occlusal table represent?
a. 30-40
b. 40-50
c. 50-60
d. 60-70
e. 100

8. Which of the following represents the pulmonary neoplasm MOST likely to produce ACTH?
a. Mesothelioma
b. Adenocarcinoma
c. Small cell carcinoma
d. Squamous cell carcinoma
e. Bronchio;palveolar carcinoma

9. Integration of the F factor plasmid into yhr chromosome
a. is essential in order for the chromosome to beb transferred during conjugation
b. is essential in order for the F factor to be transferred during conjugation (ans)
c. leads to the formation of F pill
d. produces a mutation

10. Which of the following chemical disinfectants has the narrowest antimicrobial spectrum?
a. lodophors
b. Phenolics
c. Glutaraidehyde
d. Chlorine compounds
e. Quaternary ammonium compounds

11. Which of the following methods of sterilization requires the LONGEST time?
a. Steam under pressure at 250F (121C)
b. Steam under pressure at 340F (171C)
c. Undersaturated chemical vapor at 270F (132C)
d. Dry heat at 320F (160C)(ans)
e. Dry heat at 340F (171C)

12. Each of the following statements about lymphocyte activation is correct EXCEPT one. Which one is the EXCEPTION?
a. Interleukin 5 is a B cell growth and differentiation factor
b. Interleukin 2 stimulates proliferation of T and B lymphocytes
c. B lymphocytes recognize antigen on the surface of antigen-presenting cells in the context of HLA-D molecules.
d. T lymphocytes recognize antigen on the surface of antigen-presenting cells in the context of HLA-B molecules.

13. WHich of the following represents the primary function of S-IgA?
a. Aggregates microrganisms and prevents colonization
b. Activates complement in secretory fluids
c. Promotes phagocytosis by monocytes
d. Activates mast cells
e. Activates NK cells

14. Each of the following is a type of inflammatory exudate EXCEPT one WHich one os the EXEPTION?
a. Serous
b. Fibrous
c. Purulent
d. Fibrinous
e. Pseudomembranous

15. Which of the following is the MOST common location for an atherosclerotic included aneurysm?
a. Thoracic aorta
b. abdominal aorta?????
c. Coronary arteries
d. arch of the aorta
e. common illac arteries

16. Which of the following statements regarding Th1 and Th2 cells is CORRECT?
a. Th1 cells are CD4 whereas Th2 cells are CD8.
b. Th1 cells develop in the bone marrow, whereas Th2 cells develop in the thymus.
c. Th1 cells and Th2 cells are distinguished by the cytokines they secrete.
d. Th1 cells recognize peptide and Class 1 MHC, whereas Th2 cells recognize peptide and Class II MHC.
e. Both Th1 and Th2 cells function by releasing perfolin and granzymes following activation.

17. Solution A has a pH of 7.0, and Solution B has a pH of 6.0. Both solutions are of equal volume. Which of the following statements about Solutions A and B is MOST accurate?
a. A has 1/10 as many hydrogen Ions as B.
b. A has 10 times more hydrogen Ions than B.
c. A has 7/6 of the hydrogen Ion vconcentration of B.
d. A has 6/7 of the hydrogen Ion concentration of B.

18. Each of the following polymers is correctly paired with itds components precursor EXCEPT one. Which one is the EXCEPTION?
a. Dextran - Sucrose
b. Glycogen - Fructose
c. Mutan - Sucrose(ans)
d. Glycogen - UDP-Glucose
e. Levan - Sucrose

19. A person who has a long history of anabolic steroid abuse but has recently stopped is likely to exhibit each of the following characteristics EXCEPT one. Which one is the EXCEPTION?
a. Sterility
b. Low FSH Levels
c. Low testosterone levels
d. Decreased number of spermatids(ans)

20. How many nucleotides are needed to code for the protein with 150 amino acids.
a. 50
b. 150
c. 300
d. 450 (just a guess)
e. 600

21. Cortisol stimulates synthesis in the liver of
a. glucokinase
b. phosphofructokinase
c. pyruvate carboxylase
d. pyruvate kinase

22. Optic nerve fibers from the nasal half of the retina cross the midline and enter the optic tract of the opposite side by the way of the
a. Optic chiasma
b. lateral geniculate body
c. bipolar cells of the retina????
d. brachium of the superior colliculus
e. geniculocalcarine tract (optic radiations)

23. A blow that shelters the coracoid process will have a direct effect on which of the following pairs of muscles?
a. Serratus anterior and pectoralis major
b. Subscapularis and pectoralis major
c. Biceps brachil and pectoralis minor
d. Subscapularis and subclavius
e. Deltoid and subclavius

24. A tendon consists main ly of
a. reticular fibers(ans)
b. elastic fiber bundles
c. loose collagenous bundles
d. dense, regular, collagenous bundles
e. dense, irregular, collagenous bundles

25. Which of the following functional groups are essential for a substance to act as a amphipathic (amphiphillic) molecule?
a. Polar, nonpolar(ans)
b. Polar, negatively charged
c. Nonpolar, positively charged
d. Cyclic, hydrophilic
e. Brached, hydrophilic

26. Each of the followng factors affects heights of cusps and depths of fossae on restorations EXCEPT one. Which one is the EXCEPTION?
a. Curve of Spee
b. Intercondylar distance
c. Vertical overlap of anterior teeth
d. Horizontal overlap of anterior teeth
e. Steepness of the articular eminence

27. Which of the following roots of teeth would MORE frequently contain a single root canal?
a. Maxillary incusors(ans)
b. Mandibulaor incisors
c. Maxillary first premolars
d. Mesiobruccal root, maxillary molars
e. Mesial root, mandibular molars

28. The distlingual cusp of the right mandibular first molar is fractured by the excessive contact with the opposing maxillary molar during right lateral excursion. Which of the following is the MOST likely location of the interference.????
a. Lingual surface of a maxillary lingual cusp
b. Facial surface of a maxillary lingual cusp
c. Facial surface of a maxillary facial cusp
d. Lingual surface of a maxillary facial cusp

29. When viewed sagitally, which of the following teeth have their long axes at an angle LEASt perpendicular to the occlusal plane?
a. Maxillary incisors
b. Mandibular canines
c. Mandibular premolars
d. Maxillary premolars
e. Mandibular first molars

 

7. What approximate percentage of the total buccolingual dimension of a posterior tooth does the occlusal table represent?
a. 30-40
b. 40-50
c. 50-60
d. 60-70 ( MY ANSWER)
e. 100


11. Which of the following methods of sterilization requires the LONGEST time?
a. Steam under pressure at 250F (121C)
b. Steam under pressure at 340F (171C)
c. Undersaturated chemical vapor at 270F (132C) ( MY ANSWER) can u explain this,bcoz its undersaturated vapors i m confused
d. Dry heat at 320F (160C)(ans) why not this ??
e. Dry heat at 340F (171C)



14. Each of the following is a type of inflammatory exudate EXCEPT one WHich one os the EXEPTION?
a. Serous ( MY ANSWER)pl explain????
b. Fibrousi think
c. Purulent
d. Fibrinous
e. Pseudomembranous



22. Optic nerve fibers from the nasal half of the retina cross the midline and enter the optic tract of the opposite side by the way of the
a. Optic chiasma ?
b. lateral geniculate body
c. bipolar cells of the retina????
d. brachium of the superior colliculus
e. geniculocalcarine tract (optic radiations)


23. A blow that shelters the coracoid process will have a direct effect on which of the following pairs of muscles?
a. Serratus anterior and pectoralis major
b. Subscapularis and pectoralis major
c. Biceps brachil and pectoralis minor
d. Subscapularis and subclavius
e. Deltoid and subclavius (MY ANSWER)



24. A tendon consists main ly of
a. reticular fibers(ans) (CORRECT)
b. elastic fiber bundles
c. loose collagenous bundles
d. dense, regular, collagenous bundles
e. dense, irregular, collagenous bundles



28. The distlingual cusp of the right mandibular first molar is fractured by the excessive contact with the opposing maxillary molar during right lateral excursion. Which of the following is the MOST likely location of the interference.????
a. Lingual surface of a maxillary lingual cusp ( MY GUESS)
b. Facial surface of a maxillary lingual cusp
c. Facial surface of a maxillary facial cusp
d. Lingual surface of a maxillary facial cusp


29. When viewed sagitally, which of the following teeth have their long axes at an angle LEASt perpendicular to the occlusal plane?
a. Maxillary incisors why not this option?
b. Mandibular canines
c. Mandibular premolars
d. Maxillary premolars
e. Mandibular first molars[/quote]( MY GUESS)

please explain this, thanks

 

thanks all 4 da feed back....
1 more doubt....
da articulatin surface of tmj in da adult is covered by fibrous c.t vth chondrocytes
n dat in young its covered by hyaline.....
is it correct????
i thought da articulatin surfaces r always covered vth hyaline....

 

Hitoplasma capsulatum
Infection results after inhalation of the conidia. This results in a variety of clinical manifestations. Approximately 95% of cases are inapparent, subclinical, or completely benign. The disease is diagnosed only by the X-ray findings of residual areas of pulmonary calcification and a positive histoplasmin skin test. Approximately 40 million people in the USA (that number is not a typo) have had the disease, and 200,000 new infections occur every year The remaining 5% develop a chronic progressive lung disease, a chronic cutaneous or systemic disease, or an acute fulminating rapidly fatal systemic infection. The latter form is particularly common in children. Following infection there is an acute alveolitis, and macrophages engulf the organism, resulting in an inflammatory reaction. Macrophages probably carry the organism to other parts of the body very early in the course of the infection.

 

the articulating surface of tmj dnt have hyaline..
covered by fibrous avascular tissue

no chondrocytes

 

thanks docaspra.....
i got it.....seems like m confusin just eveythin......
neway thanks....

 

dn worry,,

 

when both the dentition of human are considered the life span of dental lamina will be..?(anatomy 96 q paper)

 

items dat r not scored will not b used 2 evaluate candidates....so dont worry much about dem..

 

da non articulatin surfaces of tmj r covered vth periosteum

 

I had a question regarding this testlet question. If anybody could explain the answer it would be much appreciated. Thanks!
A 42 year old female with a hix of hyperparathyroidism presents witha complaint of bilateral pain in the TMJ joint on closing. She reports that her ears are occasionally clogged and she sometimes experiances a ringing sensation. The dentist determines that these symptoms are related to her TMJ condition.
Which of the following will most likely be increased in this patient?
a) Intestinal calcium absorption
b)intestinal organic phosphate absorption
c)renal calcitriol production
d)renal calcium excretion
e)renal organic phosphate extretion

According to the answers, the answer SHOULD be D. However I thought hyperparathyroidism presented with decreased clearance of Calcium? Is this an error in the exam or am I wrong?

 

true what you are saying but even i don't know the ans

 

its (a)

 

Thank you very much for your quick responses. How abot this one?
The oldedst enamel in a fully erupted first molar is located at the
a cervix o the tooth
bOral surface of a cusp
cmesial and distal surfaces ofd the tooth
ddentinoenamel juntion underlying a cusp
e dentinoenamel junction underlying a fissure