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]

yes!!u r right...inner medulla is the ans.

what is the ans for this-
predominant Ig in saliva??
IgA or secretory IgA??

 

[KiTmAn]

yes!!u r right...inner medulla is the ans.

what is the ans for this-
predominant Ig in saliva??
IgA or secretory IgA??

This should be secretory IgA...
IgA ==> 2 forms...Serum IgA and Secretory IgA...Serum is made by Bcells in blood and Secretory IgA is the one that is secreted on mucosal surfaces such as saliva, tears, Epithelial secretions, etc.!

 

[pbkal]

okay.i got it now...

1)if a pt has increased osmolarity,what is most effective subs that pt needs?
a)renin
b)ADH

ans-both,right?

2)pt gets extraction,presents with fever n blood under his fingernails(splinter blood clots),what disease process was most likely cause of this?
a)DIC
b)thrombocytopenia
c)endocarditis
d)vasculitis

3)what causes most birth defects in industrialized countries??
a)CMV
b)EBV

4)which virus infects B cells??
is the ans-EBV??im not sure,pls correct if im wrong.

 

[morphology]

okay.i got it now...

1)if a pt has increased osmolarity,what is most effective subs that pt needs?
a)renin
b)ADH---answwer

ans-both,right?

2)pt gets extraction,presents with fever n blood under his fingernails(splinter blood clots),what disease process was most likely cause of this?
a)DIC
b)thrombocytopenia
c)endocarditis
d)vasculitis--answer

3)what causes most birth defects in industrialized countries??
a)CMV
b)EBV

4)which virus infects B cells??
is the ans-EBV??im not sure,pls correct if im wrong.

not sure for answers

 

[bansbari]

HI,,

1)if a pt has increased osmolarity,what is most effective subs that pt needs?
a)renin
b)ADH

ans-both,right?

2)pt gets extraction,presents with fever n blood under his fingernails(splinter blood clots),what disease process was most likely cause of this?
a)DIC
b)thrombocytopenia
c)endocarditis answer
d)vasculitis

3)what causes most birth defects in industrialized countries??
a)CMV answer
b)EBV answer of 4

4)which virus infects B cell?
if am wrong do correct me
thank you so much in advance

 

[KiTmAn]

i feel like number 1 should be ADH ...i mean i would pick that if I had to pick between renin and ADH cuz renin stimulates aldosterone release and is not as direct effect as that of ADH.

 

[pbkal]

hai
thanks for the ans..

 

[pbkal]

most abundant in the oral cavity?
a)S.salivarius
b)S.sanguis
c)S.mutans

most abundant in dental plaque-S.mutans.what is the ans for above question?

which is least likely to infect a bum lesion?
a)C.tetani
b)S.aureus
c)M.ulceratum
d)P.aerogenosa-answer
am i right??

 

[KiTmAn]

most abundant in the oral cavity?
a)S.salivarius
b)S.sanguis
c)S.mutans

most abundant in dental plaque-S.mutans.what is the ans for above question?

which is least likely to infect a bum lesion?
a)C.tetani
b)S.aureus
c)M.ulceratum
d)P.aerogenosa-answer
am i right??

for number1 -- its S.sanguis...that is the most abundant strep sp in oral cavity...
S.mutans is the primary etilogic agent for caries..but does that mean its the most abundant in dental plaque??? please do respond

 

[pbkal]

for number1 -- its S.sanguis...that is the most abundant strep sp in oral cavity...
S.mutans is the primary etilogic agent for caries..but does that mean its the most abundant in dental plaque??? please do respond

yess!!u r right.S.mutans need not necessarily be most common organism in dental plaque.

 

[pbkal]

pls ans these questions-

1)which pulp horn of a permanent mand first molar is the smallest?
a)distal
b)mesiofacial
c)distofacial
d)mesiolingual
e)distolingual

2)the highest and sharpest cusp on a primary mand first molar is the
a)mesiolingual
b)distolingual
c)mesiofacial
d)distofacial
e)distal

3)a 5yr old child is treated with large doses of tetracycline for 1yr period,which of the following permanent teeth will least likely show tetracycline staining?
a)permanent CI
b)" LI
c)" canines
d)1st PM
e)permanent first molars

options-1)a and b
2)a,b and c
3)b,c and d
4)b,c and e
5)c,d and e

4)the nerves in dental pulp r
a)afferent only
b)sympathetic only
c)parasympathetic only
d)afferent and sympathetic
e)afferent and parasympathetic

 

[pbkal]

substrate for glucosyltransferase??
a)sucrose
b)glucose
c)fructose

it enables the transfer of glucose.so,does that mean that glucose is the substrate for glucosyltransferase?
pls post the ans.

 

[pbkal]

which epithelium sustains the trauma the best?
transitional epithelium?
stratified squamous epith?

i think it shouls be transitional epithelium.am i right?pls correct if wrong...

 

[pbkal]

best way for bacteria to transfer multiple drug resistance depends upon-
a)conjugation
b)transduction
c)transformation

is a or b the ans??

 

[gaya]

which epithelium sustains the trauma the best?
transitional epithelium?
stratified squamous epith?

i think it shouls be transitional epithelium.am i right?pls correct if wrong...

it is stratified squamous

 

[morphology]

which epithelium sustains the trauma the best?
transitional epithelium?
stratified squamous epith?

i think it shouls be transitional epithelium.am i right?pls correct if wrong...

i think it is strarified squmous

 

[morphology]

best way for bacteria to transfer multiple drug resistance depends upon-
a)conjugation--answer
b)transduction
c)transformation

is a or b the ans??

correct me if i m wrong

 

[metrogyl80]

1)which pulp horn of a permanent mand first molar is the smallest?
a)distal
b)mesiofacial
c)distofacial
d)mesiolingual answer
e)distolingual

2)the highest and sharpest cusp on a primary mand first molar is the
a)mesiolingual answer
b)distolingual
c)mesiofacial
d)distofacial
e)distal

3)a 5yr old child is treated with large doses of tetracycline for 1yr period,which of the following permanent teeth will least likely show tetracycline staining?
a)permanent CI
b)" LI
c)" canines
d)1st PM
e)permanent first molars

options-1)a and b
2)a,b and c
3)b,c and d
4)b,c and e
5)c,d and e


4)the nerves in dental pulp r
a)afferent only
b)sympathetic only
c)parasympathetic only
d)afferent and sympathetic answer
e)afferent and parasympathetic[/quote]

 

[metrogyl80]

best way for bacteria to transfer multiple resistance depends upon-
a)conjugation answer
b)transduction
c)transformation


correct me if iam wrong

 

[metrogyl80]

substrate for glucosyltransferase??
a)sucrose
b)glucose
c)fructose

it enables the transfer of glucose.so,does that mean that glucose is the substrate for glucosyltransferas


substrate is sucrose .

 

[gaya]

1)which pulp horn of a permanent mand first molar is the smallest?
a)distal
b)mesiofacial
c)distofacial
d)mesiolingual
e)distolingual

ans is distal <a>

 

[gaya]

3)a 5yr old child is treated with large doses of tetracycline for 1yr period,which of the following permanent teeth will least likely show tetracycline staining?
a)permanent CI
b)" LI
c)" canines
d)1st PM
e)permanent first molars

options-1)a and b
2)a,b and c
3)b,c and d <ans >
4)b,c and e
5)c,d and e

 

[pbkal]

3)a 5yr old child is treated with large doses of tetracycline for 1yr period,which of the following permanent teeth will least likely show tetracycline staining?
a)permanent CI
b)" LI
c)" canines
d)1st PM
e)permanent first molars

options-1)a and b
2)a,b and c
3)b,c and d <ans >
4)b,c and e
5)c,d and e

thanks for the ans gaya.can u explain the ans for the above question.

 

[pbkal]

substrate for glucosyltransferase??
a)sucrose
b)glucose
c)fructose

it enables the transfer of glucose.so,does that mean that glucose is the substrate for glucosyltransferas


substrate is sucrose .

thanks for the ans metrogyl80.r u sure of the ans?because i was going through other threads and the ans has been discussed as glucose by some......so,just got confused.

 

[pbkal]

best way for bacteria to transfer multiple resistance depends upon-
a)conjugation answer
b)transduction
c)transformation


correct me if iam wrong

yess!!i think the same as ans.

 

[pbkal]

i think it is strarified squmous

thanks morphology for the ans.can u explain the reason..just want to know if there is any logic to ans this type of questions.

 

[pbkal]

1)which pulp horn of a permanent mand first molar is the smallest?
a)distal
b)mesiofacial
c)distofacial
d)mesiolingual
e)distolingual

ans is distal <a>

how many pulp horns does the permanent mand 1st molar have?4 or 5??since the distal cusp is not much significant cusp as others,does it have a pulp horn?
which is the largest and sharpest cusp in permanent mand 1st molar??mesiofacial or mesiolingual??

 

[morphology]

thanks morphology for the ans.can u explain the reason..just want to know if there is any logic to ans this type of questions.

squmous epithelium function- protection and also many layers right, so i think it is the answer.
i am not sure
is it the answer?

 

[metrogyl80]

what i think is,substrate is the starting one from which reaction starts,it is the sucrse which starts and broken n glucose and fructose.. The enzyme glucosyltransferase (GTF) produced by mutans streptococci is the key factor in this process. Oral bacterial GTFs use sucrose as a substrate in synthesis of either water-soluble or insoluble glucans.

majority of our sugars will be taken in sucrose or milk sugar,unless if we eat only glucose powder,main substrate wont be glucose.


if i am wrong correct me.

 

[make you smile]

substrate for glucosyltransferase??
a)sucrose
b)glucose
c)fructose

Glycosyltransferase is another name for dextran sucrase.The substrate for this enzyme is sucrose.

 

[morphology]

whch one is the least permeable to membrane?
02
co2
h2o
sodium
ethanol

is it sodium?

 

[KiTmAn]

whch one is the least permeable to membrane?
02
co2
h2o
sodium
ethanol

is it sodium?

i think it is sodium...but if someone can explain the significance of ethanol in the membrane permeability...that would be great!

 

[chipotle]

i think it is sodium...but if someone can explain the significance of ethanol in the membrane permeability...that would be great!

the answer is sodium !

 

[pbkal]

hi
yess the ans is sodium.
ions and charged molecules and large polar molecules r impermeable.
nonpolar and small polar molecules r permeable.

 

[pbkal]

what i think is,substrate is the starting one from which reaction starts,it is the sucrse which starts and broken n glucose and fructose.. The enzyme glucosyltransferase (GTF) produced by mutans streptococci is the key factor in this process. Oral bacterial GTFs use sucrose as a substrate in synthesis of either water-soluble or insoluble glucans.

majority of our sugars will be taken in sucrose or milk sugar,unless if we eat only glucose powder,main substrate wont be glucose.


if i am wrong correct me.

yess!!ur explanation sense correct.thanks for the explanation.

 

[pbkal]

substrate for glucosyltransferase??
a)sucrose
b)glucose
c)fructose

Glycosyltransferase is another name for dextran sucrase.The substrate for this enzyme is sucrose.

thanks for the ans.

 

[pbkal]

squmous epithelium function- protection and also many layers right, so i think it is the answer.
i am not sure
is it the answer?

i dont have the correct ans for this.according to my thinking,since transitional epithelium is present in uterus which is subjected to much trauma during pregnancy and birth,so i thought it best sustains the trauma.....
i dont know if im right....

 

[toothfairy482]

pbkal please do not confuse uterus w/ bladder and ureters....
Transitional epithelium is present in bladder/ureters to accomodate the fluctuating levels of fluid.

Strat squamous epith is better suited for trauma.

i dont have the correct ans for this.according to my thinking,since transitional epithelium is present in uterus which is subjected to much trauma during pregnancy and birth,so i thought it best sustains the trauma.....
i dont know if im right....

 

[pbkal]

pbkal please do not confuse uterus w/ bladder and ureters....
Transitional epithelium is present in bladder/ureters to accomodate the fluctuating levels of fluid.

Strat squamous epith is better suited for trauma.

yess!!u r right.thanks for correcting me..

 

[pbkal]

can anyone clear this doubt-
sublingual salivary gland-does it come under purely mucous type??
actually,it is categorized under mucous type in dental decks in one page..
it has serous demilunes-means it has mucous acini with serous cap....so,does it not become mixed type now??
so,is it mucous type or mixed type??

 

[toothfairy482]

sublingual -The sublingual gland consists mostly of Mucous acini capped with serous demilunes and is therefore categorized as a mixed gland.

submandibular-secretory cells are of both serous and mucous types, the submandibular gland is a mixed gland, though it is mostly serous.👍👍

can anyone clear this doubt-
sublingual salivary gland-does it come under purely mucous type??
actually,it is categorized under mucous type in dental decks in one page..
it has serous demilunes-means it has mucous acini with serous cap....so,does it not become mixed type now??
so,is it mucous type or mixed type??

 

[shivG]

1)which of foll. occurs in a right lateral movements?
-the rt condyle primarily rotates
-the rt condyle moves down the eminentia (what it means? )
-the facial cusps of the mandibular left side pass under the maxi left facial cusps
-the facial cusps of the mandi rt side pass under the maxillary rt lingual cusps

2)condyles on the laterotrusive side generally rotates abt a
-sagittal axis only
-horizontal axis only
-horizontal axis and translates laterally
-vertical axis and translates laterally

3)in the horizontal plane, as the mandible moves in a lateral excursion, the midline of mandible moves
-straight anteriorly
-straight posteriorly
-straight laterally
-anteriorly and laterally
-posteriorly and laterally

4)when the mandible performs a laterotrusive movement, the laterotrusive side condyle moves primarily abt which foll. axis?
-vertical
-sagittal
-horizontal
-transverse


thanks...

 

[MarkAnderson]

Tongue tip touch receptors most numerous site in mucosa.

 

[smyl]

+2 as its pka is 3....so as we go towards lesser pH,concentration of H+ ions increase causing +charge.....

 

[smyl]

Answer should be B....bcoz loop of henle is present in medulla,and hence as we move towards ascending loop concentration decreases...max conc in medulla

 

[smyl]

1) Transverse sinus

 

[pbkal]

1)which of foll. occurs in a right lateral movements?
-the rt condyle primarily rotates-ans(not sure)
-the rt condyle moves down the eminentia (what it means? )
-the facial cusps of the mandibular left side pass under the maxi left facial cusps
-the facial cusps of the mandi rt side pass under the maxillary rt lingual cusps

2)condyles on the laterotrusive side generally rotates abt a
-sagittal axis only
-horizontal axis only
-horizontal axis and translates laterally
-vertical axis and translates laterally-answer

3)in the horizontal plane, as the mandible moves in a lateral excursion, the midline of mandible moves
-straight anteriorly
-straight posteriorly
-straight laterally
-anteriorly and laterally-answer
-posteriorly and laterally

4)when the mandible performs a laterotrusive movement, the laterotrusive side condyle moves primarily abt which foll. axis?
-vertical-answer
-sagittal
-horizontal
-transverse


thanks...

pls correct if im wrong..

 

[shivG]

thanks pblk..



some que.

1)Which of foll. best describes the location of cervical line on a mandi. LI?
-on distal, it is more apical than on mesial
-on the lingual, it is more incisal than on facial
-on the mesial, is is more apical than on distal
-on facial, it is more apical than on lingual
-on the facial and lingual, it is at same level

2)from facial view, where would the CEJ be most apically positioned on the crown of primary mandibular first molar?
-mesial one third
-middle one third
-distal one third

3)the primary mandibular first molar normally exhibit which of following?
-an oblique ridge
-a facial pit
-three roots
-a distal groove
-a distal triangular fossa

4)which of foll. best describes the cervical margin on facial crown surface of maxillary first molar?
-straight
-evenly convex towrds apex
-evenly convex towards occlusion
-irregularly convex towards apex
-irregularly convex towrds occlusion

 

[pbkal]

thanks pblk..



some que.

1)Which of foll. best describes the location of cervical line on a mandi. LI?
-on distal, it is more apical than on mesial -answer
-on the lingual, it is more incisal than on facial
-on the mesial, is is more apical than on distal
-on facial, it is more apical than on lingual
-on the facial and lingual, it is at same level

2)from facial view, where would the CEJ be most apically positioned on the crown of primary mandibular first molar?
-mesial one third
-middle one third
-distal one third-answer

3)the primary mandibular first molar normally exhibit which of following?
-an oblique ridge
-a facial pit
-three roots
-a distal groove
-a distal triangular fossa

none of the options actually fit.i dont know abt facial pit.....but rest all r not present in primary mand molar.

4)which of foll. best describes the cervical margin on facial crown surface of maxillary first molar?
-straight-answer
-evenly convex towrds apex
-evenly convex towards occlusion
-irregularly convex towards apex
-irregularly convex towrds occlusion

pls correct the answer if im wrong....

 

[gaya]

Infection in contact wearers is caused by ?