anatomy questions

[pbkal]

Advertisement - Members don't see this ad

hai
can anyone please answer these questions-
1)infection from saggital sinus drains into??
2)spread of infection from facial vein to cavernous sinus is through??

 

[pbkal]

Septicemia - Ans

hey!!i thought the same.....but,in key-pyoderma is given........
should we take septicemia for granted as ans..

 

[pbkal]

yeah i 'll choose choice a

thanks .

 

[neosmile]

Septicemia - Ans

I think so, someone pls confirm this!!

 

[neosmile]

which is the common type of malaria

 

[pbkal]

anyone pls ans this-

which of the following reflexes is exhibited by the masseter muscle when the dentist taps on the side of the face during an examination?
a)stretch
b)withdrawal
c)mass muscle
d)golgi tendon
e)cross extensor

 

[pbkal]

which is the common type of malaria

plasmodium falciparum is responsible for 80%of all malaria cases.

 

[pbkal]

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?
a)sterlity
b)low FSH levels
c)low testosterone levels
d)decreased number of spermatids

is (a) ans??pls confirm..

which of the following best describes hydroxyapatite in enamel?
a)has a nonpolar surface
b)has 10ions in each unit cell
c)contains no ion substitutions
d)has a higher solubility than florapatite
has solubility that decreases as ph decreases.

is (d)ans??

 

[neosmile]

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?
a)sterlity
b)low FSH levels
c)low testosterone levels
d)decreased number of spermatids

is (a) ans??pls confirm..

which of the following best describes hydroxyapatite in enamel?
a)has a nonpolar surface
b)has 10ions in each unit cell
c)contains no ion substitutions
d)has a higher solubility than florapatite
has solubility that decreases as ph decreases.

is (d)ans??

a and d correct respectively 👍

 

[neosmile]

anyone pls ans this-

which of the following reflexes is exhibited by the masseter muscle when the dentist taps on the side of the face during an examination?
a)stretch
b)withdrawal
c)mass muscle
d)golgi tendon
e)cross extensor

Stretch reflex

 

[neosmile]

Inner cell mass is seen for the first time in which of the following?

Zygote, morula, fertilization, blastocyst, trilaminar disc.

Answer: blastocyst????

yeah thats blastocyst!!

 

[pbkal]

a and d correct respectively 👍

thanks neosmile.i think the key i have do has some mistakes.......so,just confirming answers.in the key,for second question-(c) is given as ans...so,got the doubt.

 

[pbkal]

an action potential initiated at the midpoint along the length of an axon will
a)not propagate
b)propagate towards the same
c)propagate towards the nerve ending
d)propagate towards both soma and the nerve ending

 

[pbkal]

an action potential initiated at the midpoint along the length of an axon will
a)not propagate
b)propagate towards the same
c)propagate towards the nerve ending
d)propagate towards both soma and the nerve ending

a pt bites down rapidly on an unexpected hard surface while chewing.this results in cessation of motor unit recruitment in jaw closing muscles by causing stimulation of
a)muscle spindles
b)jaw opening muscles
c)periodontal mechanoreceptors
d)nociceptors in the dental pulp

 

[pbkal]

pls ans these-

1)cortisol stimulates synthesis in the liver of
a)glucokinase
b)phosphofructokinase
c)pyruvate carboxylase
d)pyruvate kinase

2)cushings syndrome is characterized by each of the following conditions except one.
a)increased protein anabolism
b)increased androgen levels
c)hyperglycemia
d)hypertension
e)hyperkalemia

 

[neosmile]

thanks neosmile.i think the key i have do has some mistakes.......so,just confirming answers.in the key,for second question-(c) is given as ans...so,got the doubt.

Hi,
Yeah I saw its 2000 unreleased i guess.

 

[neosmile]

an action potential initiated at the midpoint along the length of an axon will
a)not propagate
b)propagate towards the same
c)propagate towards the nerve ending
d)propagate towards both soma and the nerve ending

Its d..

 

[neosmile]

a pt bites down rapidly on an unexpected hard surface while chewing.this results in cessation of motor unit recruitment in jaw closing muscles by causing stimulation of
a)muscle spindles
b)jaw opening muscles
c)periodontal mechanoreceptors
d)nociceptors in the dental pulp

Ans- periodontal mechanoreceptor

 

[neosmile]

pls ans these-

1)cortisol stimulates synthesis in the liver of
a)glucokinase
b)phosphofructokinase
c)pyruvate carboxylase
d)pyruvate kinase

2)cushings syndrome is characterized by each of the following conditions except one.
a)increased protein anabolism
b)increased androgen levels
c)hyperglycemia
d)hypertension
e)hyperkalemia

1, c
2, e

pls correct if I am wrong!!

 

[neosmile]

Lower third molar extracted and upper molar supraerupted, what movement has the least interference with this Upper molar?
Pro, ret, lateral

Cusp to cusp tip on Left canines, where is the right condyle ??
in the fossa, Medial to it, diastal, anterior, posterior

 

[neosmile]

Hi everyone,

which of the following statements BEST describe GTP-binding proteins(G-Proteins)? a.are important components of steroid harmone signal transduction b.catalize the reaction which produces diacylglycerol c.are tightly bound to adenylate cyclase d.usually inactive protein kinase C e.are membrane proteins

Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ? a.including adenylate cyclase synthesis b.including triglyceride lipase synthesis c. inhibiting cyclic AMP d.dirctly activating an intracellur protein kinase e.enhancing the binding of epinephrine to an extracellular membrane receptor

Each of the following is charac of creatinine EXCEPT one. Which one is the exception? a) Freely filtered b) Slightly secreted c) Slightly reabsorbed d) produced endogenously at a constant rate

Total urinary nitrogen excretion in LEAST when an individual is? a.starving b.on a well balanced diet c.on a diet containing adequate fat and carbohydrate but no protein d.on a diet containing adequate pretein but no fat or carbohydrate.. is that c??

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

 

[pbkal]

1, c
2, e

pls correct if I am wrong!!

hi neosmile.thanks for the answers.
regrding question 2,i was doubting (a) could also be the ans.cortisol causes increased protein breakdown.in first option,its mentioned-increased protein anabolism,so y not option (a) as ans?

pls explain.......

 

[pbkal]

Hi everyone,

which of the following statements BEST describe GTP-binding proteins(G-Proteins)? a.are important components of steroid harmone signal transduction b.catalize the reaction which produces diacylglycerol c.are tightly bound to adenylate cyclase d.usually inactive protein kinase C e.are membrane proteins -answer.

Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ? a.including adenylate cyclase synthesis b.including triglyceride lipase synthesis c. inhibiting cyclic AMP d.dirctly activating an intracellur protein kinase e.enhancing the binding of epinephrine to an extracellular membrane receptor

Each of the following is charac of creatinine EXCEPT one. Which one is the exception? a) Freely filtered b) Slightly secreted c) Slightly reabsorbed d) produced endogenously at a constant rate

Total urinary nitrogen excretion in LEAST when an individual is? a.starving b.on a well balanced diet c.on a diet containing adequate fat and carbohydrate but no protein d.on a diet containing adequate pretein but no fat or carbohydrate.. is that c??-yess,its (c).

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

pls correct if im wrong..

 

[neosmile]

hi neosmile.thanks for the answers.
regrding question 2,i was doubting (a) could also be the ans.cortisol causes increased protein breakdown.in first option,its mentioned-increased protein anabolism,so y not option (a) as ans?

pls explain.......

No, Excess cortisols cause protein catabolism, sodium retention and potassium loss and thus hypokalemia.

So, exception is hyperkalemia.

 

[neosmile]

pls correct if im wrong..

Thanks pbkal, i agree with the answers too. Pls someone,find out the rest two.

 

[neosmile]

Lower third molar extracted and upper molar supraerupted, what movement has the least interference with this Upper molar?
Pro, ret, lateral

Cusp to cusp tip on Left canines, where is the right condyle ??
in the fossa, Medial to it, diastal, anterior, posterior

I think its protraction for 1st..Correct me if I am wrong

pls someone answer the 2nd one..

 

[maiya]

1. Lingual ridge
2. TIA
Correct me if i am wrong!!

thanx for ans,even i think the same,hope its right

 

[pbkal]

No, Excess cortisols cause protein catabolism, sodium retention and potassium loss and thus hypokalemia.

So, exception is hyperkalemia.

HI NEOSMILE
i still have a doubt.cortisol causes hypokalemia and protein catabolism.so,in the question-hyperkalemia and protein anabolism both r exceptions,since both r not present in cushings syn......right??????

 

[pbkal]

I think its protraction for 1st..Correct me if I am wrong

pls someone answer the 2nd one..

for 2nd,its left lateral excursion-so,rt condyle will move medially and inferiorly......pls correct if im wrong...

 

[pbkal]

1)from the occlusal view,which of the following anatomical features r frequently found on both the primary max first and second molars?
a.four major cusps r evident
b.oblique ridges r well developed.
c.marginal ridges r well developed
d.outlines r rectangular in shape
e.crowns converge to te distal and lingual aspects.

is (c) ans??

2)a max CI cross sectioned at the cementoenamel junc will have which of the following forms?
a.round
b.square
c.triangular
d.rectangular
e.pentagonal

3)when a dentist examines the normal max arch from a sagittal view,which of the following tooth inclinations can be observed?
a.posterior teeth r mesially inclined
b.ant teeth r straight with no inclination
c.ant teeth r distally inclined.
d.post teeth r straight with no inclination
e.post teeth r distally inclined

4)which of the following is considered an accessory ligament of the TMJ?
a.capsular
b.collateral
c.stylohyoid
d.sphenomandibular
e.temperomandibular

is (b) ans??

5)when the post teeth contact more heavily than the ant teeth in closure,and the ant teeth disclude post teeth in eccentric movement,the condition is known as
a.group function
b.ant.open bite
c.CR-CO discrepancy
d.alert feeding position
e.mutually protected occlusion

6)from facial view,which of the following conditions is present on both primary max first and second molars?
a.a short root trunk
b.crowns resembling max first molar
c.presence of 3 roots,2 on lingual and 1 on facial
d.an indistinct facial developmental groove seperating 2 facial cusps

is (a) ans??

7)total number of cusps visible from the distal aspect of the crown of a max first molar
a.1
b.2
c.3
d.4
e.5

8)which of the following primary grooves uniting in the distal pit on the occlusal surface of the mand 2nd 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

9)when viewed from the sagittal plane and progressing anteriorly,the axial inclination of the ant teeth
a.remains vertical
b.inclines facially
c.inclines mesially
d.'' distally
e. '' lingually

 

[neosmile]

for 2nd,its left lateral excursion-so,rt condyle will move medially and inferiorly......pls correct if im wrong...

I think so too, thanks.

And for cortisol qs, i really didn't notice protein anabolism so i guess another screwed up qs 😕

Will try answering your da qs soon.. Why are the others in hibernation??🙁

 

[pbkal]

I think so too, thanks.

And for cortisol qs, i really didn't notice protein anabolism so i guess another screwed up qs 😕

Will try answering your da qs soon.. Why are the others in hibernation??🙁

thanks neosmile.

 

[pbkal]

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

c or d ans????????

 

[pbkal]

a stab wound creating a pneumothorax on the left side will usually result in collapse of which of the following?
a.left lung only
b.right lung only
c.both lungs
d.the rib cage on left side
e.left lung and pericardial sac

hey!!i know this question has already been discussed,but i dont remember the ans finally decided.......
is it (a) or (c)???

 

[pbkal]

pls confirm the ans-

1)if LA solution is deposited in the pterygopalatine fossa,which is anesthetized?
a.V1
b. V2
c. V3
d.facial nerve
e.vagus nerve

is (b) ans??

2)a tendon consists mainly of
a.reticular fibers
b.elastic fiber bundles
c.loose collagenous bundles
d.dense regular collagenous bundles
e.dense irregular ''

is (d) ans??

3)articulating surface of adult mand condyle is covered by which of the following ?
a.elastic tissue
b.synovial membrane
c.hyaline cartialge
d.typical perichondrium
e.collagenous connective tissue

is (b) ans???

 

[pbkal]

Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ? a.including adenylate cyclase synthesis b.including triglyceride lipase synthesis c. inhibiting cyclic AMP d.dirctly activating an intracellur protein kinase e.enhancing the binding of epinephrine to an extracellular membrane recep


ans is -inhibiting cyclic amp phosphodiesterase.cyclic amp causes release of insulin from pancreas in tissues.methyl xanthines inhibit cyclic amp,thereby causing LIPOLYSIS.
pls if someone can give a better explanation-.........

 

[pb2007]

pls confirm the ans-

1)if LA solution is deposited in the pterygopalatine fossa,which is anesthetized?
a.V1
b. V2
c. V3
d.facial nerve
e.vagus nerve

is (b) ans??

2)a tendon consists mainly of
a.reticular fibers
b.elastic fiber bundles
c.loose collagenous bundles
d.dense regular collagenous bundles
e.dense irregular ''

is (d) ans??

3)articulating surface of adult mand condyle is covered by which of the following ?
a.elastic tissue
b.synovial membrane
c.hyaline cartialge
d.typical perichondrium
e.collagenous connective tissue

is (b) ans???

1...b
2....d
3....b
ur answers r correct pbkal

 

[pb2007]

Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ? a.including adenylate cyclase synthesis b.including triglyceride lipase synthesis c. inhibiting cyclic AMP d.dirctly activating an intracellur protein kinase e.enhancing the binding of epinephrine to an extracellular membrane recep


ans is -inhibiting cyclic amp phosphodiesterase.cyclic amp causes release of insulin from pancreas in tissues.methyl xanthines inhibit cyclic amp,thereby causing LIPOLYSIS.
pls if someone can give a better explanation-.........

many extracellular physiological signalling agents increase intracellular levels of secondary messanger cAMP.these signalling agents activate the seven transmembrane domain class of g proteins coupled receptors.ligand binding causes activation of heterotrimeric g protein which stimulates one or more isoforms of adenyle cyclase tom catalyse production of cAMP.intracellular levels of cAMP are then regulated through actions of cyclic amp phosphodiesterase.
hope it helps in sum way .


adenosine analogues inhibit adepocytes adenyle cyclase by gtp dependent process.

 

[pb2007]

a stab wound creating a pneumothorax on the left side will usually result in collapse of which of the following?
a.left lung only
b.right lung only
c.both lungs
d.the rib cage on left side
e.left lung and pericardial sac

hey!!i know this question has already been discussed,but i dont remember the ans finally decided.......
is it (a) or (c)???

i think its a

 

[pb2007]

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

c or d ans????????

answer ....c
i luked into nbde kaplan chap 11 in anatomy pg 601,it says endochondral ossification leads to increase in lenght and appositional ossification leads to increase in width ,so i guess increase in size in ques reffers to the width .plz correct if worng .

 

[dentistus]

Hi

.each of the follow is necessary for viral antigen recognition by CD4 t helper except one?
1. viral replicaton in host cell
2. clevage of viral protein into small peptides
3. transport of viral peptides to cell surface by MHC clas2 molecule
4. binding of T cell TCR to MHC class2 bound viral particle
5. internalization of the virus by an antigen presenting cell.

Thanks

 

[pbkal]

1...b
2....d
3....b
ur answers r correct pbkal

thanks pb2007.

 

[pbkal]

pls ans these-


1)an examle 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 endothelial cell
e.oxygen across alveolar wall

2)a dental pt presents with bluish discoloration of the mucous membrane indicative of cyanosis.it is most likely the result of
a.inc pco2
b.dec hb conc
c.dec rbc conc
d.inc levels of reduced hb
e.dec blood flow to affected area

3)at which stage in the process of gene cloning r restriction nucleases used?
a.isolation of mRNA
b.syn of double stranded dna
c.insertion of cDNA into vector dna
d.expression of the cloned gene by the bacteria
e.introduction of recombinant dna into bact cell.

 

[pb2007]

2)a dental pt presents with bluish discoloration of the mucous membrane indicative of cyanosis.it is most likely the result of
a.inc pco2
b.dec hb conc
c.dec rbc conc
d.inc levels of reduced hb
e.dec blood flow to affected area
i think th answer should be B choice coz cyanosis is due to the presense of deoxygenated hemoglobin .
http://en.wikipedia.org/wiki/Cyanosis
3)at which stage in the process of gene cloning r restriction nucleases used?
a.isolation of mRNA
b.syn of double stranded dna
c.insertion of cDNA into vector dna.............answer
d.expression of the cloned gene by the bacteria
e.introduction of recombinant dna into bact cell.
plz correct me if wrong

 

[neosmile]

pls ans these-


1)an examle 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 endothelial cell
e.oxygen across alveolar wall

2)a dental pt presents with bluish discoloration of the mucous membrane indicative of cyanosis.it is most likely the result of
a.inc pco2
b.dec hb conc
c.dec rbc conc
d.inc levels of reduced hb
e.dec blood flow to affected area

3)at which stage in the process of gene cloning r restriction nucleases used?
a.isolation of mRNA
b.syn of double stranded dna
c.insertion of cDNA into vector dna
d.expression of the cloned gene by the bacteria
e.introduction of recombinant dna into bact cell.

1. b
2. d

Pls correct if I'm wrong

 

[neosmile]

i think its a

a is correct 👍

 

[neosmile]

1...b
2....d
3....b
ur answers r correct pbkal

Have a correction to make :

articulating surface of adult mand condyle is covered by which of the following ?
a.elastic tissue
b.synovial membrane
c.hyaline cartialge
d.typical perichondrium
e.collagenous connective tissue
its e here..

 

[neosmile]

1)from the occlusal view,which of the following anatomical features r frequently found on both the primary max first and second molars?
a.four major cusps r evident
b.oblique ridges r well developed.
c.marginal ridges r well developed
d.outlines r rectangular in shape
e.crowns converge to te distal and lingual aspects.

is (c) ans??

2)a max CI cross sectioned at the cementoenamel junc will have which of the following forms?
a.round
b.square
c.triangular ------- ans
d.rectangular
e.pentagonal

3)when a dentist examines the normal max arch from a sagittal view,which of the following tooth inclinations can be observed?
a.posterior teeth r mesially inclined -----ans
b.ant teeth r straight with no inclination
c.ant teeth r distally inclined.
d.post teeth r straight with no inclination
e.post teeth r distally inclined

4)which of the following is considered an accessory ligament of the TMJ?
a.capsular
b.collateral
c.stylohyoid
d.sphenomandibular -------- ans
e.temperomandibular

is (b) ans??

5)when the post teeth contact more heavily than the ant teeth in closure,and the ant teeth disclude post teeth in eccentric movement,the condition is known as
a.group function
b.ant.open bite
c.CR-CO discrepancy - ---- i think
d.alert feeding position
e.mutually protected occlusion

6)from facial view,which of the following conditions is present on both primary max first and second molars?
a.a short root trunk
b.crowns resembling max first molar
c.presence of 3 roots,2 on lingual and 1 on facial
d.an indistinct facial developmental groove seperating 2 facial cusps

is (a) ans?? i think so,too

7)total number of cusps visible from the distal aspect of the crown of a max first molar
a.1
b.2
c.3
d.4
e.5

8)which of the following primary grooves uniting in the distal pit on the occlusal surface of the mand 2nd 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 ------ ans
e.distal portion of the central

9)when viewed from the sagittal plane and progressing anteriorly,the axial inclination of the ant teeth
a.remains vertical
b.inclines facially --------ans
c.inclines mesially
d.'' distally
e. '' lingually

pls correct me if i'm wrong!!

 

[pbkal]

Hi everyone,

which of the following statements BEST describe GTP-binding proteins(G-Proteins)? a.are important components of steroid harmone signal transduction b.catalize the reaction which produces diacylglycerol c.are tightly bound to adenylate cyclase d.usually inactive protein kinase C e.are membrane proteins

Mythyl xanthines such as caffeine and theophylline enhance lipolysis in adipose tissue by ? a.including adenylate cyclase synthesis b.including triglyceride lipase synthesis c. inhibiting cyclic AMP d.dirctly activating an intracellur protein kinase e.enhancing the binding of epinephrine to an extracellular membrane receptor

Each of the following is charac of creatinine EXCEPT one. Which one is the exception? a) Freely filtered b) Slightly secreted c) Slightly reabsorbed d) produced endogenously at a constant rate

Total urinary nitrogen excretion in LEAST when an individual is? a.starving b.on a well balanced diet c.on a diet containing adequate fat and carbohydrate but no protein d.on a diet containing adequate pretein but no fat or carbohydrate.. is that c??

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

for creatinine question-(c) would be best choice.because there is little or no reabsorption of creatinine.pls correct if wrong..

 

[pbkal]

2)a dental pt presents with bluish discoloration of the mucous membrane indicative of cyanosis.it is most likely the result of
a.inc pco2
b.dec hb conc
c.dec rbc conc
d.inc levels of reduced hb
e.dec blood flow to affected area
i think th answer should be B choice coz cyanosis is due to the presense of deoxygenated hemoglobin .
http://en.wikipedia.org/wiki/Cyanosis
3)at which stage in the process of gene cloning r restriction nucleases used?
a.isolation of mRNA
b.syn of double stranded dna
c.insertion of cDNA into vector dna.............answer
d.expression of the cloned gene by the bacteria
e.introduction of recombinant dna into bact cell.
plz correct me if wrong

thanks pb2007

 

[pbkal]

Have a correction to make :

articulating surface of adult mand condyle is covered by which of the following ?
a.elastic tissue
b.synovial membrane
c.hyaline cartialge
d.typical perichondrium
e.collagenous connective tissue
its e here..

r u sure neosmile??