open questions to all

[akg]

---

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After an automobile accident , a patient's chin deviates to the left on opening mouth widely.His mandible is probably fractured at which of the following points?

a. genial tubercle
b.left condyolar neck
c.right condylar neck
d.left mental foramen
e.right mental foramen

post the correct anwer and justify it with right explanation

 

[akg]

to me question 2 ? is the best answer and also about 3 i will say c

Viscocity of blood is never uniform , it varies from great arteries to capillaries.

Healthy blood varies in viscosity as it flows normally and becomes much "thinner" by the time it reaches the capillaries. It can even change viscosity locally at a given point in order to pass through a constriction.


Hence the relatively correct answer for the more viscous blood is in Aorta as they are great arteries and larger in size.

-----------------------------------------------------------------------

If anyone can correct it, i welcome them , but pls justify your answer with an explanation

 

[muscleman7911]

This question had been asked prior...

http://forums.studentdoctor.net/showthread.php?p=2736588#post2736588

chk it out 😀 confusing.. one though... did not post the answer..
its vasa recta!! 😀

 

[sweetgal]

This question had been asked prior...

http://forums.studentdoctor.net/showthread.php?p=2736588#post2736588

chk it out 😀 confusing.. one though... did not post the answer..
its vasa recta!! 😀

thanks a ton 😀 ,,yep i now agree answer is vasa recta

 

[muscleman7911]

thanks a ton 😀 ,,yep i now agree answer is vasa recta

you are very welcome!! told you as long as i KNOW 😀

 

[DentalDocCa]

can anyone guide me about kaplan Qbank.is it worth trying for online bank for 1 month.i am confused.please help
thanks

 

[muscleman7911]

can anyone guide me about kaplan Qbank.is it worth trying for online bank for 1 month.i am confused.please help
thanks

This thread is for exclusive questions for national boards
other topics you can start a new thread if necessary.
This question had been asked prior, Infact I had asked this a couple of weeks back, chk my threads.

 

[akg]

This question had been asked prior...

http://forums.studentdoctor.net/showthread.php?p=2736588#post2736588

chk it out 😀 confusing.. one though... did not post the answer..
its vasa recta!! 😀

yep its quite correct ,

three factors actually govern the viscocity

hematocrit
tempareature
flow rate


only in vasa recta the flow rate is lower , hence more cell to cell adhesion and henceforth the bloo is relatively more viscous here.


thanks for the correction

 

[BABAK kabab]

could any one help withthese questions?
Which of the following structures is lined with epithelium derived from mesoderm of the ureteric bud?

A. Bowman's capsule
B. Distal convoluted tubule
C. Loop of Henle
D. Proximal convoluted tubule
E. Ureter
If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus

 

[sweetgal]

could any one help withthese questions?
Which of the following structures is lined with epithelium derived from mesoderm of the ureteric bud?

A. Bowman's capsule
B. Distal convoluted tubule
C. Loop of Henle
D. Proximal convoluted tubule
E. Ureter
If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus

hi i think the answer for 2nd question is:glossopharyngeal and vagus
correct me if i am wrong

 

[mekha]

hi i think the answer for 2nd question is:glossopharyngeal and vagus
correct me if i am wrong

its NOT glosso and vagus


expl
----
The esophagus is innervated largely by the autonomic nervous system. Sympathetic innervation plays a minor role and arises from the pharyngeal plexus in the upper esophagus and the stellate ganglia in the lower cervical and upper thoracic portions. The aortic plexus, sympathetic chain, and splanchnic nerves supply the remainder of the thoracic esophagus. In the abdominal segment, fibers from the celiac ganglion pass around the left gastric and inferior phrenic arteries to innervate the esophagus. Parasympathetic innervation to the esophagus is provided by the vagus. Parasympathetic function includes stimulation of smooth muscle and secretory activity. The vagus also aids the sphincteric function of the lower esophagus. The recurrent laryngeal nerves pass cranially in a groove between the esophagus and trachea, supplying the cervical and upper one third of the thoracic esophagus


guess the answer now friend 👍

 

[drkum1]

answers
2-E
1-E(not sure)

could any one help withthese questions?
Which of the following structures is lined with epithelium derived from mesoderm of the ureteric bud?

A. Bowman's capsule
B. Distal convoluted tubule
C. Loop of Henle
D. Proximal convoluted tubule
E. Ureter
If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus[/QUOTE

 

[g3k]

could any one help withthese questions?
Which of the following structures is lined with epithelium derived from mesoderm of the ureteric bud?

A. Bowman's capsule
B. Distal convoluted tubule
C. Loop of Henle
D. Proximal convoluted tubule
E. Ureter
If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus

The second question, the muscles of swallowing is innervated by both glossopharyngeal and vagus. So the answer is C.

Cranial nerve IX is efferent to one muscle only- the stylopharyngeus. This muscle dilates the pharynx laterally and contributes to the elevation of the pharynx and larynx. In turn, it serves to help clear the pharynx and larynx for swallowing. The glossopharyngeal nerve mediates the sensory portion of the pharyngeal gag.
The Vagus (X) nerve innervates many muscles. During swallowing it plays a major role. First it elevates the palate to close the nasopharynx. Then by approximation of vocal folds, ventricular folds and aryepiglottic folds it closes the laryngeal vestibule. Then it narrows the pharynx and initiates peristalsis by contracting the middle and inferior pharyngeal constrictors. It then allows the bolus to enter the esophagus by relaxing the cricopharyngeal sphincter. Finally it initiates peristalsis in the esophagus.

 

[BABAK kabab]

Thanks every body sorry forgot to mention the answers that I got in the papers were both E though about 2 I can say E and C both correct! 😕
drkum1 could you explain me why you think E is correct?

answers
2-E
1-E(not sure)

could any one help withthese questions?
Which of the following structures is lined with epithelium derived from mesoderm of the ureteric bud?

A. Bowman's capsule
B. Distal convoluted tubule
C. Loop of Henle
D. Proximal convoluted tubule
E. Ureter
If a person has normal musculature, but has difficulty swallowing, which nerves should be tested for function?

A. Hypoglossal and phrenic
B. Hypoglossal and splanchnic
C. Glossopharyngeal and vagus
D. Phrenic and vagus
E. Splanchnic and vagus[/QUOTE

 

[mekha]

The second question, the muscles of swallowing is innervated by both glossopharyngeal and vagus. So the answer is C.

Cranial nerve IX is efferent to one muscle only- the stylopharyngeus. This muscle dilates the pharynx laterally and contributes to the elevation of the pharynx and larynx. In turn, it serves to help clear the pharynx and larynx for swallowing. The glossopharyngeal nerve mediates the sensory portion of the pharyngeal gag.
The Vagus (X) nerve innervates many muscles. During swallowing it plays a major role. First it elevates the palate to close the nasopharynx. Then by approximation of vocal folds, ventricular folds and aryepiglottic folds it closes the laryngeal vestibule. Then it narrows the pharynx and initiates peristalsis by contracting the middle and inferior pharyngeal constrictors. It then allows the bolus to enter the esophagus by relaxing the cricopharyngeal sphincter. Finally it initiates peristalsis in the esophagus.

i jumped into conclusion to this question ,sorry

g3k ur right

The stylopharyngeus: elevates the larynx elevates the pharynx dilates the pharynx to permit the passage of a large food bolus, so facilitating swallowing

so ans wud be glosso and vagus

if it was peristalisis of eso then splanchnic and vagus helps

 

[drkum1]

Initially I thought the answer for 2 is C, But I came across the same question in Kaplan qbank where it says the answer is E.

This is the explanation for it--The upper2/3 of the esophagus contains striated muscles.It is derived from the pharyngeal arches and innervated by vagus. The lower1/3 contains smooth muscle from splanchnic mesoderm and is innervated by the splanchnic plexus. The vagus has mixed sensory and motor function. The sensory fiber innervate the sensory nuclei and autonomic centers of the medulla oblongata.The motor fibers innervate muscles of the palate,pharynx and respiratory and cardiovascular systems.

I hope this helps.

Thanks every body sorry forgot to mention the answers that I got in the papers were both E though about 2 I can say E and C both correct! 😕
drkum1 could you explain me why you think E is correct?

answers
2-E
1-E(not sure)

 

[drkum1]

Paper Anatomy2000
question numbers
16,18,47,48,56,64,81,88,97

Bio Physio 2000
101,109.

Micro patho 2000
22,30,34,39,43.

DADH2000
106,110,111,118,130,132,137,121,144,151,153,154,155,156,162,183,182,198.

 

[RocknSun]

Paper Anatomy2000
question numbers
16 e
18 a
48, d
56,d
64,c
88, b
97, b


Micro patho 2000
22 b
30 d
34 e
39 c
43 d.

DADH2000
106 b
110 b
111 e
118 c
137 c
121 a
144 e
153 e
154 d
155 e
156 d
162 d
198 a

Correct me if I am wrong.

 

[mouth mirror]

Initially I thought the answer for 2 is C, But I came across the same question in Kaplan qbank where it says the answer is E.

This is the explanation for it--The upper2/3 of the esophagus contains striated muscles.It is derived from the pharyngeal arches and innervated by vagus. The lower1/3 contains smooth muscle from splanchnic mesoderm and is innervated by the splanchnic plexus. The vagus has mixed sensory and motor function. The sensory fiber innervate the sensory nuclei and autonomic centers of the medulla oblongata.The motor fibers innervate muscles of the palate,pharynx and respiratory and cardiovascular systems.

I hope this helps.

Thanks every body sorry forgot to mention the answers that I got in the papers were both E though about 2 I can say E and C both correct! 😕
drkum1 could you explain me why you think E is correct?

To add to the confusion.....
Glossopharyngeal & vagus nerves are the 2 nerves which are tested for dysphagia during a routine "cranial nerve examination" ....it doesnt mean that they are the only nerves involved in swallowing.but dysphagia goes hand in hand with C 9 & 10 just like bell's palsy with C 7.

 

[muscleman7911]

glosso and vagus for voluntary swallowing(hypoglossal also plays a part, in controlling the tongue, an essential component of voluntary swallowing... diff phases...)

and vagus and splanchnic for involuntary swallowing...

😀

 

[akg]

akg mock test 2 : physio-biochem


crack them , test your preparedness for part 1



1)Some degree of alkalosis occurs temporarily as a result of

a.ingestion of ammonium chloride
b.prolonged deep breathing
c.severe muscular effect
d.excessive smoking
e.high fluid intake



2)elevation of aldosterone in blood results in

a.osmtic diuresis
b.increased PAH clearence
c.low Na and low K in urine
d.high Na and high K in urine
e.high Na and low K in plasma



3)proteins are able to buffer physiologic solutions over a wide a range of pH because they


a.are macromolecules of high molecular weight
b.contain many functional groups with differing pK's
c.have considerable secondary and tertiary structure which causes hydrogen ions be sequestered
d.have many peptide bonds which are very resistant to hydrolysis by hydrogen or hydroxyl ions


4)in aman at rest ,the amount of blood which passes through the capillaries of the systemic circulation per minute is equal to


a.about 200-400 ml
b.the amount of the stroke volume of the ventricle
c.the amount of blood which passes through the aorta per minute
d.several times the amount of the blood which passes through the aorta per minute
e.only a fraction of the amount of blood which passes through the aorta per minute



5)the lipotropic effect of the lecithin upon the fatty livers may also be produced by

a.choline
b.lipoic acid
c.ethanolamine
d.beta-hydroxybutyric acid



6)in relation to its effect upon the movement of water between the vascular and extravascular space , plasma colloid osmotic pressure acts in the same direction as the


a.tissue pressure
b.venous pressure
c.capillary pressure
d.aretriollar pressure
e.tissue colloid osmotic pressure


7)venous return would be reduced during


a.forced expiration with closed glottid
b.rhythmic muscular exercise
c.plasma transfusion
d.blood transfusion
e.all of the above
f.none of the above



8)the antidiuretic hormone is synthesized in the


a.cells of the posterior hypophysis
b.hypothalamic nuclei
c.anterior pituitary
d.pars intermedia
e.none of the above


9)the concentration of the which of the following amino acids can be used as an estimation of the amount of collagen present in a tissue


a.hydroxyproline
b.aspartic acid
c.proline
d.serine



good luck guys


9/9 ---------- you will get 95 above in biochem -physio section
8/9-----------90 and above
7/9 ----------85 and above
6/9 ---------80 and above
5/9 ---------75 and above



defend your answers with relevant explanations

 

[b'lore]

akg mock test 2 : physio-biochem


crack them , test your preparedness for part 1



1)Some degree of alkalosis occurs temporarily as a result of

a.ingestion of ammonium chloride
b.prolonged deep breathing
c.severe muscular effect
d.excessive smoking
e.high fluid intake



2)elevation of aldosterone in blood results in

a.osmtic diuresis
b.increased PAH clearence
c.low Na and low K in urine
d.high Na and high K in urine
e.high Na and low K in plasma



3)proteins are able to buffer physiologic solutions over a wide a range of pH because they


a.are macromolecules of high molecular weight
b.contain many functional groups with differing pK's
c.have considerable secondary and tertiary structure which causes hydrogen ions be sequestered
d.have many peptide bonds which are very resistant to hydrolysis by hydrogen or hydroxyl ions


4)in aman at rest ,the amount of blood which passes through the capillaries of the systemic circulation per minute is equal to


a.about 200-400 ml
b.the amount of the stroke volume of the ventricle
c.the amount of blood which passes through the aorta per minute
d.several times the amount of the blood which passes through the aorta per minute
e.only a fraction of the amount of blood which passes through the aorta per minute



5)the lipotropic effect of the lecithin upon the fatty livers may also be produced by

a.choline
b.lipoic acid
c.ethanolamine
d.beta-hydroxybutyric acid



6)in relation to its effect upon the movement of water between the vascular and extravascular space , plasma colloid osmotic pressure acts in the same direction as the


a.tissue pressure
b.venous pressure
c.capillary pressure
d.aretriollar pressure
e.tissue colloid osmotic pressure


7)venous return would be reduced during


a.forced expiration with closed glottid
b.rhythmic muscular exercise
c.plasma transfusion
d.blood transfusion
e.all of the above
f.none of the above



8)the antidiuretic hormone is synthesized in the


a.cells of the posterior hypophysis
b.hypothalamic nuclei
c.anterior pituitary
d.pars intermedia
e.none of the above


9)the concentration of the which of the following amino acids can be used as an estimation of the amount of collagen present in a tissue


a.hydroxyproline
b.aspartic acid
c.proline
d.serine



good luck guys


9/9 ---------- you will get 95 above in biochem -physio section
8/9-----------90 and above
7/9 ----------85 and above
6/9 ---------80 and above
5/9 ---------75 and above



defend your answers with relevant explanations

1.b
2.e
3.b
4.c
5.a
6.a
7.a (am not sure of this)
8.b
9.a

hope i get 95% above in real exam

 

[BABAK kabab]

1.b
2.e
3.b
4.c
5.a
6.a
7.a (am not sure of this)
8.b
9.a

hope i get 95% above in real exam

7 is definitly a dont worry good job akg these were 79 right ?😉
now i guess i am getting 95 too lol well at least i wish so

 

[akg]

1.b
2.e
3.b
4.c
5.a
6.a
7.a (am not sure of this)
8.b
9.a

hope i get 95% above in real exam

good, you can appear for exam any moment from now.

All are correct .


but before that defend your answers with explanations , especially



question numbers:

1, 6, 7.



******************************************

 

[Dent tex]

7) Valsalva maneuver causes contraction of the thoracic cage and compress the thoracic vena cava, venous return to the heart is compromised resulting in large fall in the cardiac output.

Hope this helps.

good, you can appear for exam any moment from now.

All are correct .


but before that defend your answers with explanations , especially



question numbers:

1, 6, 7.



******************************************

 

[akg]

7) Valsalva maneuver causes contraction of the thoracic cage and compress the thoracic vena cava, venous return to the heart is compromised resulting in large fall in the cardiac output.

Hope this helps.

i'm not sure about your explanation for the 7 th question , anyway i consider your explnation till i find right explanation from some source

 

[greeny]

ans is b

preprocollegen synthesis takes place in rough ER& pro collegen in Golgi apparatus & released frm fibroblasts

polymerization of aminoacids to form procollagen filaments occurs

a..on ribosomes
b in golgi apparatus
c on the fibroblastic surface
d in rough ER
e. after cleavage of the registration peptide.



in the key ,the answer was given as choice b,i.e in the golgi apparatus.but i believe the answer is a. can anyone explain why it can be choice b ?????

 

[mekha]

ans is b

preprocollegen synthesis takes place in rough ER& pro collegen in Golgi apparatus & released frm fibroblasts

preprocollagen is in rer
procollagen in rer
triple helix in rer
hydroxylation in rer
golgi jus modifies procollagen by adding oligosachrides

this is the theory i studied

 

[sweetgal]

1.the nerves of anterior abdominal wall lie immediately deep to which layer of the wall?
A.external oblique muscle
B.internal oblique muscle
C.transversus abdominis
D.transversalis fascia
E.peritoneum

2.postganglionic fibers from the pterygopalatine ganglion are distributed to each of the following except one.which one is this exception?
a.parotid gland
b.lacrimal gland
c.palatal glands
d.nasal septal mucos
e.lateral nasal mucosa

3.which of the following best describes the motor neurons that are typically found in the anterior horn of the spinal cord?
a.bipolar
b.unipolar
c.purkinje
d.multipolar
e.pseudounipolar

4.preganglionic nerve cell bodies for fibers that reach the otic ganglion are located in the
a.inferior salivatory nucleus
b.superior salivatory nucleus
c.dorsal motor nucleus of the vagus nerve
d.accessory nucleus of the oculomotor nerve
e.nucleus of the mesencephalic tract of the trigeminal nerve
if possible plz post the explanation for the last answer....

 

[muscleman7911]

1.the nerves of anterior abdominal wall lie immediately deep to which layer of the wall?
A.external oblique muscle
B.internal oblique muscle???????
C.transversus abdominis
D.transversalis fascia
E.peritoneum


2.postganglionic fibers from the pterygopalatine ganglion are distributed to each of the following except one.which one is this exception?
a.parotid gland
b.lacrimal gland
c.palatal glands
d.nasal septal mucos
e.lateral nasal mucosa

Facial nerve distribution to the rest... parotid- glossopharyngeal!!

3.which of the following best describes the motor neurons that are typically found in the anterior horn of the spinal cord?
a.bipolar
b.unipolar
c.purkinje
d.multipolar
e.pseudounipolar

REGULAE NEURON... (explanation... i think) 😀

4.preganglionic nerve cell bodies for fibers that reach the otic ganglion are located in the
a.inferior salivatory nucleus
b.superior salivatory nucleus
c.dorsal motor nucleus of the vagus nerve
d.accessory nucleus of the oculomotor nerve
e.nucleus of the mesencephalic tract of the trigeminal nerve
inferior- glossopharyngeal and superior- Facial

 

[dentaldoc81]

Please help me out with these questions:
1. Which of the following represents the most numerous leukocytes found in gingival crevicular fluid?
A. Monocytes
B. Neutrophils
C. Plasma Cells
D. B-lymphocytes
E. T- lymphoctes

2. The distolingual cusp of the right mandibular first molar is fractured by 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
E. Occlusal table of the maxillary molar

3. Which of the following anatomic features of a maxillary lateral incisor will most likely complicate root planning?
A. Root Convexity
B. Mesial Concavity
C. Distolingual groove
D. Root Bifurcation
E. Extreme distal line curvature

4. which of the following human cacers is associated with Epstein Barr Virus ?
A. T- Cell lymphoma
B. Kaposis sarcoma
C. Hepatocellular carcinoma
D. Nasopharyngeal carcinoma
E. Squamous cell carcinoma of the uterine cervix

5. Collagen degradation 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
A.Porphyro monas species
B. Lepthotrix buccalis
C. Entamoeba gingivalie
D. Enterococcus fecalis
E. Veillonella species

6. The microflora of the heavy gingival sulcus is predominantly
A. Sphirochetes and yeasts
B. gram-positive facultative rods and sphirochetes
C. gram-positive facultative Cocci and filamentous bacteria
D. gram-negative anerobic rods and fusobacteria
E. gram-negative anerobic cocci and gram positive facultative cocci.

7. Which unique aspect of cariogenic strains of streptococcus mutans sets them apart from other oral acidogenic organisms?
A. Tendency to form chains
B. Secretion of proteolytic enzymes
C. Extracellular polysaccharide made from glucose
D. Formation of water insoluble glucans from sucrose
E. Four equivalents of acid formed per mole of glucose

👍

 

[dentaldoc81]

questions added:

8. Which of the following best describes glucose handling by the kidney?
A. Transport is blocked by aldosterone.
B. Transport occurs in exchange for H+
C. Reabsorption is largest in distal tubule.
D. Transport is primarily by the active secretion into the tubular fluid.
E. Transport from the lumen of the nephron depends upon Na+ transport.

9. Which of the following represents the sensory organs concerned with the maintainence of skeletal muscle tonus?
A. Sarcomere
B. Muscle spindles
C. Gamma Efferents
D. Pacinian Corpuscules
E. Golgi tendon organs

 

[sweetgal]

Please help me out with these questions:
1. Which of the following represents the most numerous leukocytes found in gingival crevicular fluid?
A. Monocytes
B. Neutrophils
C. Plasma Cells
D. B-lymphocytes
E. T- lymphoctes

2. The distolingual cusp of the right mandibular first molar is fractured by 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
E. Occlusal table of the maxillary molar

3. Which of the following anatomic features of a maxillary lateral incisor will most likely complicate root planning?
A. Root Convexity
B. Mesial Concavity
C. Distolingual groove
D. Root Bifurcation
E. Extreme distal line curvature

4. which of the following human cacers is associated with Epstein Barr Virus ?
A. T- Cell lymphoma
B. Kaposis sarcoma
C. Hepatocellular carcinoma
D. Nasopharyngeal carcinoma
E. Squamous cell carcinoma of the uterine cervix

5. Collagen degradation 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
A.Porphyro monas species
B. Lepthotrix buccalis
C. Entamoeba gingivalie
D. Enterococcus fecalis
E. Veillonella species

6. The microflora of the heavy gingival sulcus is predominantly
A. Sphirochetes and yeasts
B. gram-positive facultative rods and sphirochetes
C. gram-positive facultative Cocci and filamentous bacteria
D. gram-negative anerobic rods and fusobacteria
E. gram-negative anerobic cocci and gram positive facultative cocci.

7. Which unique aspect of cariogenic strains of streptococcus mutans sets them apart from other oral acidogenic organisms?
A. Tendency to form chains
B. Secretion of proteolytic enzymes
C. Extracellular polysaccharide made from glucose
D. Formation of water insoluble glucans from sucrose
E. Four equivalents of acid formed per mole of glucose

👍

answers
1.b 😕
2.a
3.c
4.d
5.b
7.c
correct me if i am wrong

 

[BABAK kabab]

answers
1.b 😕
2.a
3.c
4.d
5.b
7.c
correct me if i am wrong

HI I "ll say
4.a
5.e
6.d
7.d
8.c
9.d

 

[drkum1]

1-b
2-a
3-c
4-d
5-1
7-4

Please help me out with these questions:
1. Which of the following represents the most numerous leukocytes found in gingival crevicular fluid?
A. Monocytes
B. Neutrophils
C. Plasma Cells
D. B-lymphocytes
E. T- lymphoctes

2. The distolingual cusp of the right mandibular first molar is fractured by 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
E. Occlusal table of the maxillary molar

3. Which of the following anatomic features of a maxillary lateral incisor will most likely complicate root planning?
A. Root Convexity
B. Mesial Concavity
C. Distolingual groove
D. Root Bifurcation
E. Extreme distal line curvature

4. which of the following human cacers is associated with Epstein Barr Virus ?
A. T- Cell lymphoma
B. Kaposis sarcoma
C. Hepatocellular carcinoma
D. Nasopharyngeal carcinoma
E. Squamous cell carcinoma of the uterine cervix

5. Collagen degradation 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
A.Porphyro monas species
B. Lepthotrix buccalis
C. Entamoeba gingivalie
D. Enterococcus fecalis
E. Veillonella species

6. The microflora of the heavy gingival sulcus is predominantly
A. Sphirochetes and yeasts
B. gram-positive facultative rods and sphirochetes
C. gram-positive facultative Cocci and filamentous bacteria
D. gram-negative anerobic rods and fusobacteria
E. gram-negative anerobic cocci and gram positive facultative cocci.

7. Which unique aspect of cariogenic strains of streptococcus mutans sets them apart from other oral acidogenic organisms?
A. Tendency to form chains
B. Secretion of proteolytic enzymes
C. Extracellular polysaccharide made from glucose
D. Formation of water insoluble glucans from sucrose
E. Four equivalents of acid formed per mole of glucose

👍

 

[ridge]

1. Which of the following represents the most numerous leukocytes found in gingival crevicular fluid?
B. Neutrophils

4. which of the following human cacers is associated with Epstein Barr Virus ?
D. Nasopharyngeal carcinoma

5. Collagen degradation 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
A.Porphyro monas species

6. The microflora of the heavy gingival sulcus is predominantly
C. gram-positive facultative Cocci and filamentous bacteria


7. Which unique aspect of cariogenic strains of streptococcus mutans sets them apart from other oral acidogenic organisms?
D. Formation of water insoluble glucans from sucrose

correct me if i am wrong.

 

[drkum1]

8-e
9-b

questions added:

8. Which of the following best describes glucose handling by the kidney?
A. Transport is blocked by aldosterone.
B. Transport occurs in exchange for H+
C. Reabsorption is largest in distal tubule.
D. Transport is primarily by the active secretion into the tubular fluid.
E. Transport from the lumen of the nephron depends upon Na+ transport.

9. Which of the following represents the sensory organs concerned with the maintainence of skeletal muscle tonus?
A. Sarcomere
B. Muscle spindles
C. Gamma Efferents
D. Pacinian Corpuscules
E. Golgi tendon organs

 

[ridge]

8-e
9-b
I agree with drkum

 

[dentaldoc81]

answer for question 1 should be lymphocytes or plasma cells since it is chronic. But i am not sure which one is it!

 

[dentaldoc81]

And for q 9, why is it not E? Since it says tension, should it not be golgi tendon organs. If anybody has a better explanation, please dont hesitate to put forth.
Thanks

 

[dentaldoc81]

8-e
9-b

can you please explain why it is E(8)?
Thanks

 

[KATIE17]

Which of the following permanent teeth has the greatest variation in crown size and form?

Mandibular central incisor
Maxillary lateral incisor
Maxillary first premolar
Mandibular first molar
Maxillary canine
given ans is A but i feel B. any comments?

Considering root formation, which of the following permanent teeth most readily lend themselves to rotation with extraction forceps during surgical removal? (a) Maxillary central incisor; (b) Mandibular lateral incisor; (c) Mandibular second premolar; (d) Mandibular canine; (e) Maxillary lateral incisor; (f) Maxillary first premolar; (g) Mandibular central incisor

(a) and (b)
(a) and (c) ans
(b) and (e)
(c) and (f)
(d) and (f)
(d) and (g)
(e) and (g)

all the anterior teeth with single root should be rotated with d forceps for extraction. So pls justify above ans.??

The size of the pulp chambers of the maxillary first premolars usually decreases with age due to: (a) position in the arch; (b) high resistance to decay; (c) thermal shock; (d) normal physiological and masticatory functions; (e) excessive attrition and abrasion.

(a) and (b) only
(a), (b) and (c)
(c), (d) and (e)
(d) and (e) only

ans given is (3) themal shock due to age?? 😕 I feel ans should be (4)

 

[BABAK kabab]

1. Which of the following represents the most numerous leukocytes found in gingival crevicular fluid?
B. Neutrophils

4. which of the following human cacers is associated with Epstein Barr Virus ?
D. Nasopharyngeal carcinoma

5. Collagen degradation 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
A.Porphyro monas species

6. The microflora of the heavy gingival sulcus is predominantly
C. gram-positive facultative Cocci and filamentous bacteria


7. Which unique aspect of cariogenic strains of streptococcus mutans sets them apart from other oral acidogenic organisms?
D. Formation of water insoluble glucans from sucrose

correct me if i am wrong.

Refering to HEAVY GINGIVAL SULCUS why is the answer c ? gram positive cocci and filamentus is regular supra gingival plaque isn't it?may be it was healthy gingival sulcus 😕

 

[BABAK kabab]

Which of the following permanent teeth has the greatest variation in crown size and form?

Mandibular central incisor
Maxillary lateral incisor
Maxillary first premolar
Mandibular first molar
Maxillary canine
given ans is A but i feel B. any comments?

Considering root formation, which of the following permanent teeth most readily lend themselves to rotation with extraction forceps during surgical removal? (a) Maxillary central incisor; (b) Mandibular lateral incisor; (c) Mandibular second premolar; (d) Mandibular canine; (e) Maxillary lateral incisor; (f) Maxillary first premolar; (g) Mandibular central incisor

(a) and (b)
(a) and (c) ans
(b) and (e)
(c) and (f)
(d) and (f)
(d) and (g)
(e) and (g)

all the anterior teeth with single root should be rotated with d forceps for extraction. So pls justify above ans.??

The size of the pulp chambers of the maxillary first premolars usually decreases with age due to: (a) position in the arch; (b) high resistance to decay; (c) thermal shock; (d) normal physiological and masticatory functions; (e) excessive attrition and abrasion.

(a) and (b) only
(a), (b) and (c)
(c), (d) and (e)
(d) and (e) only

ans given is (3) themal shock due to age?? 😕 I feel ans should be (4)

termal shock can cause tertiary dentin formation so answer is 3

 

[KATIE17]

termal shock can cause tertiary dentin formation so answer is 3

u r absolutely right about tertiary dentin ..but if u read d qustn carefully they r asking changes due to age..so is it necessary tht each pulp has to go under thermal shock with increasing age. I thought it can just happen accidentally like during cavity cutting without coolant etc..

 

[drkum1]

Answer-a

polymerization of aminoacids to form procollagen filaments occurs

a..on ribosomes
b in golgi apparatus
c on the fibroblastic surface
d in rough ER
e. after cleavage of the registration peptide.



in the key ,the answer was given as choice b,i.e in the golgi apparatus.but i believe the answer is a. can anyone explain why it can be choice b ?????

 

[BABAK kabab]

u r absolutely right about tertiary dentin ..but if u read d qustn carefully they r asking changes due to age..so is it necessary tht each pulp has to go under thermal shock with increasing age. I thought it can just happen accidentally like during cavity cutting without coolant etc..

Hi again
well if you think about that you will realise that one with 60 years old had more possiblity for any kind of termal shock than one with 16 years old ! right?

 

[KATIE17]

Hi again
well if you think about that you will realise that one with 60 years old had more possiblity for any kind of termal shock than one with 16 years old ! right?

Yes babakkabab,
probability is definitly high and thts due to attrition or other age changes in tooth anatomy which renders pulp chamber close to the occ. surface...and tht comes under 4th point in d qustn.

My point is tht thermal shock is not the cause of decrease in size of pulp chamber "due to age" whereas d.& e are common causes.

 

[panamh]

👍 Which of the following is most likely to promote depolymerization of extracellular matrix ?

a) cortisone
b) collagenase
c) chymotrypsin
d) hyaluronidase

 

[ridge]

:ans
Which of the following is most likely to promote depolymerization of extracellular matrix ?
b) collagenase

 

[panamh]

:ans
Which of the following is most likely to promote depolymerization of extracellular matrix ?
b) collagenase

The answer to the question is hyaluronidase . could you explain this