anatomy questions

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pbkal

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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??
 
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Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin

is a or c ans??

Bacterial lipopolysacharide produces each of the follwing except

a. Lipia A
b. Teichoic acid
c. core polysaccahride
d. o specific side chain
e. keto-deoxy-octanoate
 
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pbkal said:
Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis----------------Ans
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin

is a or c ans??

Bacterial lipopolysacharide produces each of the follwing except

a. Lipia A
b. Teichoic acid----------------Ans
c. core polysaccahride
d. o specific side chain
e. keto-deoxy-octanoate
Click to expand...

pls correct me if i'm wrong
 
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pls ans this...

which of the following is a distinguishing characteristic of a mand LI?
a.incisal edge follows arch curvature in relation to faciolingual axis.
b.incisal edge is perpendicular to the faciolingual axis
c.the cervical line curvature is greater distally than mesially
d.incisal edge is lingual to the root bisector
e.MD dimnsion of facial surface is narrower than that of a mand CI.

which has an imp influence on the function of mandible,though is not generally considered a muscle of mastication?
a.omohyoid
b.geniohyoid
c.mylohyoid
d.digastric
e.scm

is d ans??
 
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pls ans these

1)on the crown of mand 1st molar,the facial cusp ridge of the ML cusp originates at the cusp tip and normally terminates at which of the following?
a.lingual groove
b.halfway down the facial surface
c.halfway down the lingual surface
d.mesial portion of the central groove
e.mesiolinguo-occlusal point angle area

2)which ridge represents the linear elevation that extends from the distoincisal angle to the cingulum?
a.distal
b.lingual
c.cervical
d.distolingual
e.distal marginal

is (e) ans??

3)in primary first molars,which portion of the crown is shorter occlusogingivally?
a.mesial
b.distal
c.midfacial
d.midlingual

4)facial cusp tip of mand sec PM has potential to contact which of the following max cuspal inclines in a protrusive movemt?
a.distofacial of 1st PM
b.mesiofacial of 2nd PM
c.distofacial of 2nd PM
d.mesiofacial of 1st M.

b ans???

5)when examining normal mand arch from sagittal view,what inclination of teeth can be observed?
a.ant teeth r distally inclined,post teeth r mesially inclined
b.both ant and post teeth r distally inclines
c. '' '' '' '' mesially ''
d.ant teeth r mesially inclined,post teeth r distally inclined.

6)each factor affects heights of cusps and depths of fossae on restorations except one.
a.curve of spee
b.intercondylar distance
c.vertical overlap of an teeth
d.horizontal overlap of ant teeth
e.steepness of articular eminence

is e ans??
 
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pbkal said:
pls ans this...

which of the following is a distinguishing characteristic of a mand LI?
a.incisal edge follows arch curvature in relation to faciolingual axis.
b.incisal edge is perpendicular to the faciolingual axis
c.the cervical line curvature is greater distally than mesially
d.incisal edge is lingual to the root bisector
e.MD dimnsion of facial surface is narrower than that of a mand CI.

which has an imp influence on the function of mandible,though is not generally considered a muscle of mastication?
a.omohyoid
b.geniohyoid
c.mylohyoid
d.digastric
e.scm

is d ans??
Click to expand...

1. A
2. e (not sure) mylohyoid and ant belly form a part of MOM. So i think e but again not sure.
 
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if the root canal orifices in the floor of a max. ist molar are joined, to form a triangle, which will be the largest side...
1- betn mb and palatal

2- betn db and palatal

3- betn mb and db

4- all equal
 
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hi neosmile,

yes the reasoning you gave is true since all staph are hemolytic

s aureus- beta

s epidermidis- gamma

s saprophyticus- gamma

but only aureus is coagulase +ve
 
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pbkal said:
pls ans these-

which of the following conditions causes myelin degeneration of the axis cylinders of the peripheral nerves?
a)lead poisoning ans
b)silver poisoning
c)mercury poisoning
d)bismuth poiso
e)tetracycline intoxication

which of the following describes an example of innate immunity?
a)an allergic reaction to insect venom
b)the classical pathway of complement ans
c)destruction of virus infected cells by T-killer cells
d)production of IgG in response to insect venom
e)alternative pathway of complement.
Click to expand...
correct me if im wrong..thanks in advance
 
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pbkal said:
each of the following is attributable to hepatic failure except one.which one is the exception?
a)asterixis
b)gynaecomastia
c)mallory bodies ans
d)hypoalbuminemia
e)spider telangectasia

according to me,(b) is ans,but (c)is given as ans.pls confirm the right ans.

coagulase production by staphylococcus aureus is important in pathogenecity becos it
a)helps to establish the typical abscess lesion
b)helps to establish the typical cellulitis lesion ans
c)allows organisms to adhere tightly to tissue
d)provides a polysaccharide capsule to inhibit phagocytosis
e)non specifically binds to Fc portion of IgG molecules
Click to expand...
for the 2nd q staph has hyaluronidase which helps it to spread so i think it is b correct me if im wrong
 
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pbkal said:
anyone pls ans this-

which of the following represents the primary function of s-IgA?
a)aggregates microorganisms and prevents colonization
b)activates complement in secretory fluids
c)promotes phagocytosis by monocytes
d)activates mast cells
e)activates NK cells

is (a) ans???
Click to expand...
yes
 
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pbkal said:
pls ans these-

1)cortisol stimulates synthesis in the liver of
a)glucokinase ans
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
Click to expand...
ans

please correct me if im wrong..thanks in advance
 
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neosmile said:
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
Click to expand...

since the 3rd molar only has a single antagonist in the mandibular arch which has been extracted so i feel it would cause no problem in the lateral movt.

in case of non working movt of the right condyle it would move downward and forward which would mean anteromedial....
correct me if im wrong thanks
 
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pbkal said:
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 ans
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.

moz-screenshot.jpg
moz-screenshot-1.jpg
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
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 ans

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
d.alert feeding position
e.mutually protected occlusion ans

6)from facial view,which of the following conditions is present on both primary max first and second molars?
a.a short root trunk ans
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 ans
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 ans
c.inclines mesially
d.'' distally
e. '' lingually
Click to expand...

please correct me if im wrong thanks....i have my exam in a week 😳 going dizzy already:xf:
 
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pbkal said:
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 cellans
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 ans
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 ans
d.expression of the cloned gene by the bacteria
e.introduction of recombinant dna into bact cell.
Click to expand...
pleas correct me if im wrong...thanks
 
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pbkal said:
Which of the following is the most reliable criterion for pathogencity of staphy?

a. hemolysis
b. pigment production
c. coagulase production
d. mannitol fermentation
e. Liquefaction of gelatin

is a or c ans??

Bacterial lipopolysacharide produces each of the follwing except

a. Lipia A
b. Teichoic acid
c. core polysaccahride
d. o specific side chain
e. keto-deoxy-octanoate
Click to expand...

c
b
correct me if im wrong
 
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pbkal said:
pls ans these

1)on the crown of mand 1st molar,the facial cusp ridge of the ML cusp originates at the cusp tip and normally terminates at which of the following?
a.lingual groove
b.halfway down the facial surface
c.halfway down the lingual surface
d.mesial portion of the central groove
e.mesiolinguo-occlusal point angle area

2)which ridge represents the linear elevation that extends from the distoincisal angle to the cingulum?
a.distal
b.lingual
c.cervical
d.distolingual
e.distal marginal

is (e) ans??

3)in primary first molars,which portion of the crown is shorter occlusogingivally?
a.mesial
b.distal
c.midfacial
d.midlingual

4)facial cusp tip of mand sec PM has potential to contact which of the following max cuspal inclines in a protrusive movemt?
a.distofacial of 1st PM
b.mesiofacial of 2nd PM
c.distofacial of 2nd PM
d.mesiofacial of 1st M.

b ans???

5)when examining normal mand arch from sagittal view,what inclination of teeth can be observed?
a.ant teeth r distally inclined,post teeth r mesially inclined
b.both ant and post teeth r distally inclines
c. '' '' '' '' mesially ''
d.ant teeth r mesially inclined,post teeth r distally inclined.

6)each factor affects heights of cusps and depths of fossae on restorations except one.
a.curve of spee
b.intercondylar distance
c.vertical overlap of an teeth
d.horizontal overlap of ant teeth
e.steepness of articular eminence

is e ans??
Click to expand...


2.d
4.a
6.a

please correct me if im wrong
 
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the receptors for the harmone that causes blood glucose level to quickly drop r located on which cellular component in target cells?
mitochondrial matrix
nuclear matrix
plasma membrane
nuclear membrane
smooth ER

which cell cycle is most variable in mammal?
G1
G2
G0
M

which of the following is a feature of Y chromosome?
acrocentric
telocentric
submetacentric
metacentric

pls ans these ques.
 
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In closing the mouth,which muscle is most important?
is masseter ans for this???pls confirm.

how does p/o ratio alter in mitochondria,when an uncoupler is added?

a pt comes with fractured femur and dies within couple of hours due to which emboli??
 
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1.in closing mouth the most imp muscle is masseter.Also medial pterygoid and ante fibers of temporalis.
3.Fractured femur: due to fat emboli
plz correct if wrong
 
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pbkal said:
if coracoid process is shattered,which muscles r damaged??
plz ans this ques.
Click to expand...
pbkal ,do u hav choices for this ques,coracoid process has
origin of 2 muscles....1]coracobrachialis muscle
2]biceps brachii muscle{short head }
insertion of ..............pectoralis minor muscle
hope u hav one of these choices.
 
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pbkal said:
the receptors for the harmone that causes blood glucose level to quickly drop r located on which cellular component in target cells?
mitochondrial matrix
nuclear matrix
plasma membrane....answer
nuclear membrane
smooth ER

which cell cycle is most variable in mammal?
G1....answer
G2
G0
M

which of the following is a feature of Y chromosome?
acrocentric....answer
telocentric
submetacentric
metacentric

pls ans these ques.
Click to expand...
http://en.wikipedia.org/wiki/Centromere
 
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pb2007 said:
pbkal ,do u hav choices for this ques,coracoid process has
origin of 2 muscles....1]coracobrachialis muscle
2]biceps brachii muscle{short head }
insertion of ..............pectoralis minor muscle
hope u hav one of these choices.
Click to expand...

thanku very much pb2007.
options for this question r given as follows-
a.subscapularis and subclavius
b.serratus anterior and pectoralis major
c.biceps brachii and pectoralis major
d.deltoid and subclavius

i think some kind of mess up in the options..........
 
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plz ans these-
1)the type of bacteria that shows an increase following eruption of primary teeth??

2)inner cell mass is seen for the first time in which of the following?
zygote,morula,fertilization,blastocyst,trilaminar etc...

i know these questions have been posted earlier......but,not the answers.if anyone can ans these pls...thanku.
 
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