Part -1 questions

[quest_life]

1) Where the ulnar nerve is easily injured?

2) Fluorodeoxyuridine inhibits?

3)How does p/o ratio alter in mitochondria,when an uncoupler is added?(can someone explain the p/o ratio concept please ?

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[rajvanhar]

ans shd be gram negative anaerobic rods and fusobacteria

i think ans is right with gram positive n filamentous bact.
because gram negative colonies later to appear .. in plaque .. so if plaque is in later stages then gingivitis will also be there for sure.

 

[docasrpa]

micro decks says that..
in supraging plaque..
gram +ve anerobic facultative cocci. streptococcus sanguis, actinomycosis naeslundii and viscosus predominate.
as this plaq ages , vibrio, spirochetes and gram -ve bacteria predominate.

subging plaque..attached or loose, apithelium associated.
as pocket forms gram -ve anerobic rods

 

[porcelain258]

microflora of healthy gingival sulcus is?

gram -ve anerobic rods and fusobacteria
gram +ve cocci and filamentous bacteria
gram+ve facultative rods and spirochetes

so acc to the q,it's asking about the subgingival area right? and the decks says gram negative rods predominate there....its confusing still..anybody pls clear it out

 

[docasrpa]

it would be really appreciated if someone can help us with oral cavity bacteriology.
shuntyman , IG,and all those who have gvn NBDE please help. there are some q in 2002 unrelesed also..

 

[docasrpa]

are adenovirus associated with systemic disease and maculopapular rash?

 

[porcelain258]

no,Adenovirus causes respiratory illness,conjunctivitis and pharyngitis....it does not cause rash and systemic ds

 

[docasrpa]

transmission of impulse from motor nerve to muscle cell regularly produces

A.P. in the muscle cell
graded potential in muscle cell
hyperpolarization
hypopolarization
alteration in threshold potential in the muscle cell

 

[porcelain258]

transmission of impulse from motor nerve to muscle cell regularly produces

A.P. in the muscle cell
graded potential in muscle cell
hyperpolarization
hypopolarization
alteration in threshold potential in the muscle cell

edited my ans ....almost sure of it

 

[docasrpa]

skeletal muscle tonus is maintained by?

is the ans golgi tendon organ..just wanna confirm. I have sarcomere as marked choice.

 

[porcelain258]

sure ...muscle spindles-for stretch
golgi tendon organ-for relaxation or maintaining tone

 

[dental degree]

sure ...muscle spindles-for stretch
golgi tendon organ-for relaxation or maintaining tone

can anyone answer this
tuberculous lesion in oral cavity develops from
a direct innoculation from infected dental instrument
b lymphatic spread
c haematogenous spread

 

[kianaz]

can you please answer thiese questions:

1) how would the kidney conserve cations?
low h
high
urine
?
2) depleted oxaloacetat means that:
cori cycle is active
glycogenesis is active
acetyl coa will enter krebs cycle fatty acid degredation will be inhibited
increase keton body synthesis

3)best description of the micelle?

4) a component act as a 2nd messenger and also act as transcriptioal catalease in prokaryotics??

5 direction of DNA RNA protein sequence??

6 cyanid and apnea block the transport of a solute in conclusion the solute will be depending on what mechanism of transportation?
active
simple
facilisted
7 lowest threshold for which of the following?
sour salty bitter sweat


8 highest osmolarity in body ?
ascending loop of henle
renal medulla

9 ssecondary swalloing occure due to???

10 smell is due to all except?
pseudopolar nerve
should be dissolved before detected
mucos glands around the area...
receptores covered by psudostratfield epithelium
substuncllar cell

 

[docasrpa]

which of the following mediates dissolution of the fibrin clot?
plasmin
factor2
factor 3
factor13

 

[dreamdental]

can you please answer thiese questions:


2) depleted oxaloacetat means that:
cori cycle is active



6 cyanid and apnea block the transport of a solute in conclusion the solute will be depending on what mechanism of transportation?
active



8 highest osmolarity in body ?
renal medulla

 

[dreamdental]

skeletal muscle tonus is maintained by?

is the ans golgi tendon organ..just wanna confirm. I have sarcomere as marked choice.

decks says muscle tone,posture,lentha and tension is maintained by stratch reflex.

 

[porcelain258]

which of the following mediates dissolution of the fibrin clot?
plasmin
factor2
factor 3
factor13

 

[porcelain258]

hey docasrpa,
just check out post no 108.....just now edited my ans

 

[porcelain258]

can anyone answer this
tuberculous lesion in oral cavity develops from
a direct innoculation from infected dental instrument
b lymphatic spread
c haematogenous spread

hey dentaldegree
did u mention all the choices for the ans...

 

[econservative]

can you please answer thiese questions:

1) how would the kidney conserve cations?
low h
high
urine
?
2) depleted oxaloacetat means that:
cori cycle is active
glycogenesis is active
acetyl coa will enter krebs cycle- ans
fatty acid degredation will be inhibited
increase keton body synthesis

3)best description of the micelle?- hydrophobic and hydrophilic bonds helps to stabilize it

4) a component act as a 2nd messenger and also act as transcriptioal catalease in prokaryotics??

5 direction of DNA RNA protein sequence??ans 5'-3' direction

6 cyanid and apnea block the transport of a solute in conclusion the solute will be depending on what mechanism of transportation?
active
simple
facilisted
7 lowest threshold for which of the following?
sour salty bitter sweat
ans- bitter

8 highest osmolarity in body ?
ascending loop of henle- ans
renal medulla

9 ssecondary swalloing occure due to???

10 smell is due to all except?
pseudopolar nerve
should be dissolved before detected
mucos glands around the area...
receptores covered by psudostratfield epithelium
substuncllar cell

Can you please mention the choices for the rest of the questions ..
please correct me if i am wrong

 

[plan]

plzz help in answeing

which structure is covered by axillary sheath as it passes through it ??
roots of brachial plexus------
cords of brachial plexus
branches of brachial plexus
division of brachial plexus

mand 2nd molar carious lesion nd periapical abscess and the underlying tooth will show which of the following histological features?
enamel rods
tubules
fibroblasts

if u need to give an intramuscular nerve block in the oral region which muscle is preferred??
masseter
lat pty
med pty
temporalis

which muscle is responsible for cheek bite after a mandibular nerve block??
masseter
lat pty
med pty
temporalis

 

[porcelain258]

plzz help in answeing

which structure is covered by axillary sheath as it passes through it ??
roots of brachial plexus------
cords of brachial plexus
branches of brachial plexus
division of brachial plexus

mand 2nd molar carious lesion nd periapical abscess and the underlying tooth will show which of the following histological features?
enamel rods
tubules
fibroblasts

if u need to give an intramuscular nerve block in the oral region which muscle is preferred??
masseter
lat pty
med pty
temporalis

which muscle is responsible for cheek bite after a mandibular nerve block??
masseter
lat pty
med pty
temporalis

pls correct m if wrong

 

[docasrpa]

mismatched bases occur during S phase of cell cycle. In which phase they are repaired?

G1
G2
G0

 

[porcelain258]

G2

 

[vijaggi]

Electro negativity in living cell requires that
a potential for charge seperation exists
b biologic water assumes a crystaline pattern at the membrane
c negative charge outnumbers the positive charges within the cell cytoplasm

ans is a ,can somebody explain this

 

[dreamdental]

Electro negativity in living cell requires that
a potential for charge seperation exists
b biologic water assumes a crystaline pattern at the membrane
c negative charge outnumbers the positive charges within the cell cytoplasm

ans is a ,can somebody explain this

where did you find this question and answer if answer is not from proper source then I think it is C.what do you say guys?

 

[vijaggi]

where did you find this question and answer if answer is not from proper source then I think it is C.what do you say guys?

its given in 1982 paper.

 

[plan]

thanks porcelain 4r answering.

mand 2nd molar carious lesion nd periapical abscess and the underlying tooth will show which of the following histological features?
enamel rods
tubules
fibroblasts

can u plz explain with reason

 

[vijaggi]

mycotic organism are charecteristilly found microscopically with in reticuloendothelial cells in
a candidiasis
b aspergillosis
c mucormycosis
d histoplasmosis
e all of the above

 

[docasrpa]

histoplasmosis

 

[docasrpa]

neutrophils PMNLs play vital role in

ingesting bacteria
bodys immune system

 

[de297]

neutrophils PMNLs play vital role in

ingesting bacteria
bodys immune system

??

 

[docasrpa]

decks says bodys immune system..thats why i had a doubt

 

[porcelain258]

decks shd be right as neutrophils play a role in innate immunity

 

[porcelain258]

what's the ans given?

 

[vijaggi]

thanks docaspra for the answer

which of the following describes the effect of a drug that inhibit renal carbonic anhydrase?
a it decreases urea clearance
b it increases tm for glucose
c it increases the affinity of the urine
d it decreases sodium reabsorption in the proximal tubule (ans)

can somebody explain this

 

[Behnam Nazem]

Is it a book like the USMLE Q-bank?

 

[Sinatra Frank]

the answer is correct.

carbonic anhydrase is worling on the prox. tubules.. the result of its action is hco3- and H+.. this H+ is exchanged with na+ ( secondary active antiport ) h+ out na+ in.

if u block the enzyme--no production of h+ no exchange.

 

[vijaggi]

the answer is correct.

carbonic anhydrase is worling on the prox. tubules.. the result of its action is hco3- and H+.. this H+ is exchanged with na+ ( secondary active antiport ) h+ out na+ in.

if u block the enzyme--no production of h+ no exchange.

thanks a lot sinatra

 

[aim high]

61.polymerisation of amino acid to form procollagen filaments occurs
1.on ribosomes
2.in the golgi apparatus
3.on the fibroblast surface
4.in rough endoplasmic reticulum
5.after cleavage of registration peptide
ans in the key is golgi apparatus in 1985 paper..and in explanation it says on ribosomes.
can any one plz explain the collagen synthesis ...its a bit confusing...
thanks a lot

 

[plan]

level at which oesophagus present.
below cricothyroid or above. if option c6 is not given

endometrium is increased during which phase ?
proliferative
secretory ?

 

[njsmahal]

if oxaloacetate is depleted hwo can krebs cycle function? krebs cycle works if there is constant supply of oxaloacetate and acetyl co-A

 

[shibab]

what are the linkages found in glycogen n starch??

 

[njsmahal]

what are the linkages found in glycogen n starch??

glycogen and amylopectin have alpha 1,4 and branching has alpha 1,6
and amylose doesnt branch so it is just alpha 1,4 linkage linear molecule

 

[docasrpa]

bowmans capsule is lined by which epithelium?

 

[njsmahal]

bowmans capsule is lined by which epithelium?

flattened squamous cells i think

 

[docasrpa]

lower motor neuron control of muscles of mastication is by..
nucleus ambiguous
motor nucleus of trig nerve
motor nucleus of facial nerve
lateral corticospinal tract
mesencephalic nucleus

 

[njsmahal]

lower motor neuron control of muscles of mastication is by..
nucleus ambiguous
motor nucleus of trig nerve
motor nucleus of facial nerve
lateral corticospinal tract
mesencephalic nucleus

motor nucleus of trigeminal nerve. ans
mesencephalic nucleus is involved with jaw reflexes but it is sensory so no control over muscles. and nucleus ambiguus is for laryngeal and pharyngeal uscles

 

[shibab]

glycogen and amylopectin have alpha 1,4 and branching has alpha 1,6
and amylose doesnt branch so it is just alpha 1,4 linkage linear molecule

thanks a lot

 

[ddswannab]

1. A Downs patient come to clinic with his mother and wants to get amalgam restoration removed, what does the dentist do?

2. A patient comes to clinic wanting to get his tooth removed and does not want to listen to the pros and cons of the treatment, what does the dentist do?

a. Perform the treatment
b. Explain the pros and cons anyways and then perform the treatment
c. Refuse treatment
d. Explain the pros and cons and recall the patient

3. A hypoplasia of primary teeth which is limited to incisal thirds of incisors, incisal tips of canines, and occlusal portion of molars suggest what?

 

[de297]

3. A hypoplasia of primary teeth which is limited to incisal thirds of incisors, incisal tips of canines, and occlusal portion of molars suggest what?[/quote]
metabolic disturbance in utero