Official NBDE Part 1 Study Q & A Thread

Started by tinman831
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tinman831

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Please post all study questions/answers for the NBDE Part 1 in this thread. Good luck!

As a side note, this is not the place for sales ads. Discussion of remembered questions appearing on the exam is also not permitted.
 
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hi! can anyone please answer my queries??
conduction pathway for the cardiac impulse has different transmission velocities. the slowest rate of the conduction is in the
a. SA node
b. AV node ans
c.Purkinje fibers
d left bundle branch
e atrial muscle fibers
i think the ans shd be left bundle branch
 
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ADH is synthesised by

a. cells of post hypophysis ans
b. hypothalamic nuclei
c. ant pitutary
d. pars intermedia
e. none of the above

i think the ans shud be b. hypothalamic nuclei:scared:
 
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IMFdoc said:
hi! can anyone please answer my queries??
conduction pathway for the cardiac impulse has different transmission velocities. the slowest rate of the conduction is in the
a. SA node
b. AV node ans
c.Purkinje fibers
d left bundle branch
e atrial muscle fibers
i think the ans shd be left bundle branch
Click to expand...
slowest rate of conduction is AV node
 
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IMFdoc said:
ADH is synthesised by

a. cells of post hypophysis ans
b. hypothalamic nuclei
c. ant pitutary
d. pars intermedia
e. none of the above

i think the ans shud be b. hypothalamic nuclei:scared:
Click to expand...
ADH and Oxytocin are not synthesized in hypothalamus..they are produced and stored in post pitutary...only ant hypophysis hormones are produced n hypothalamus
 
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in cusp-fossa relation, the max 1st premolar is most likely to articulate with which mand teeth?
-1st PM (ans)
-1st PM n 2nd PM
plz explain how this s possible?
 
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IMFdoc said:
ADH is synthesised by

a. cells of post hypophysis ans
b. hypothalamic nuclei
c. ant pitutary
d. pars intermedia
e. none of the above

i think the ans shud be b. hypothalamic nuclei:scared:
Click to expand...

yeah its hypothalamic nuclei...I had the same query too this question was somewhere in decks or asda right...?
 
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hi I had this query while studying decks....
von Reckling hausen disease is another name of Type one neurofibromatosis or Osteitis Fibrosa Cystica or both .....?
Can anyone help me out on this.....pls😕
 
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mavericks said:
hi I had this query while studying decks....
von Reckling hausen disease is another name of Type one neurofibromatosis or Osteitis Fibrosa Cystica or both .....?
Can anyone help me out on this.....pls😕
Click to expand...

Its a disease that includes both. Neurofibromatosis and osteitis fibrosa (hyperparathyroidism )
 
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Plaque is a causative agent in chronic inflammatory periodontal disease because it


A
Is a precursor to calculus

B
Allows for bacterial growth

C
Mechanically irritates gingiva

D
Produces biochemical irritants
 
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acetylcholine is released at all the of the following junctions except
1. sympathetic ganglia
2. parasympathetic ganglia
3. somatic efferents to skeletal muscles
4. terminal sympathetic fibers to the heart (ans)
4 terminal sympathetic fibers to the adrenal medulla

according to me it should be 1
 
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jaw closure in parafunctional activity varies from masticatory activity in which of the following ways;
a. teeth seldom, if ever in contact in mastication
b. teeth are in tight contact during mastication
c. teeth, seldom, if ever contact in parafunction
d.teeth are in tight contact during parafunction
e. masticatory cycles are vertical

the answer to above is a,d and e
can anyone please explain😕
 
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IMFdoc said:
acetylcholine is released at all the of the following junctions except
1. sympathetic ganglia
2. parasympathetic ganglia
3. somatic efferents to skeletal muscles
4. terminal sympathetic fibers to the heart (ans)
4 terminal sympathetic fibers to the adrenal medulla

according to me it should be 1
Click to expand...

Post ganglionic neuron to heart, smooth muscle in sympthetic is supplied by epinephrine
 
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Asthma is precipitated by each of following mechanism EXCEPT

a. inc sympth stimulation

b. cox inhibitors

c. direct bronchodilator

d. inc vagal stimulation

e. type 1 hypersensitivity.

They say a, but i think it should be c
 
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System32 said:
Asthma is precipitated by each of following mechanism EXCEPT

a. inc sympth stimulation

b. cox inhibitors

c. direct bronchodilator

d. inc vagal stimulation

e. type 1 hypersensitivity.

They say a, but i think it should be c
Click to expand...
Both a and c are correct....since both cause bronchodilation.
 
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IMFdoc said:
jaw closure in parafunctional activity varies from masticatory activity in which of the following ways;
a. teeth seldom, if ever in contact in mastication
b. teeth are in tight contact during mastication
c. teeth, seldom, if ever contact in parafunction
d.teeth are in tight contact during parafunction
e. masticatory cycles are vertical

the answer to above is a,d and e
can anyone please explain😕
Click to expand...

Correct answers are b,c,e.
b-the max.efficiency is seen only when teeth contact tightly(max. intercuspation) in mastication.
c-no teeth actually contacts in parafunction except in canine occl/group occlusion(seldom)
e-refers to the chewing stroke.👍
 
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plasma osmolality decreases after infusion of
a aldosterone
b vasopressin
c angiotensin 2
d PTH
e isotonic saline
ans is a..please explain
acc. to me it should be e
 
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IMFdoc said:
plasma osmolality decreases after infusion of
a aldosterone
b vasopressin
c angiotensin 2
d PTH
e isotonic saline
ans is a..please explain
acc. to me it should be e
Click to expand...
I guess here its referring to the Aldosterone's action in kidneys....where it causes reabsortion of solutes ....thereby decreasing the osmolality.
Isotonic saline....doesnt cause any change in osmolality...(thats why isotonic!)👍
 
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Holly J said:
I guess here its referring to the Aldosterone's action in kidneys....where it causes reabsortion of solutes ....thereby decreasing the osmolality.
Isotonic saline....doesnt cause any change in osmolality...(thats why isotonic!)👍
Click to expand...

aldosterone also causes re-absorption of water alongwith sodium
 
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Hatico said:
I passed. My score is not high ( 83 only ). But it's to tough for me because I have been learning english for 1.5 years only.
Thank God, this forum and all of you!
Click to expand...

Wow Hatico.....Congratulations on passing!!!!👍 Well done!
Between you never said how was your exam??? Are you an FTD?
 
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IMFdoc said:
aldosterone also causes re-absorption of water alongwith sodium
Click to expand...

Thats right too....I think when compared to the ADH water absorption Ald. water absorption is much lower maintaining still higher plasma osmolality. Anyway IMFdoc I'll get back to u with the confirmed answer...I am not sure about this.
 
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Hatico said:
yes, I am FTD.
there were many questions on exam that I did not see in ASDA papers, Kaplan or Decks. I found many answers in wiki. It looks like wiki is bases for making questions ))) Decks (+wiki) - more than enough to pass. Do not waste much time on old ASDA papers - only 3-5 questions in actual exam.
Good luck to all of you!
Click to expand...

Disappointing!!! No ASDA🙁 Can you eloborate on your paper ? Not the questions I mean the whole thing in general...what were the major topics covered subject wise? Outside ASDA/decks/kaplan! Man you are making me nervous already Hatico!🙁
 
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Holly J said:
Disappointing!!! No ASDA🙁 Can you eloborate on your paper ? Not the questions I mean the whole thing in general...what were the major topics covered subject wise? Outside ASDA/decks/kaplan! Man you are making me nervous already Hatico!🙁
Click to expand...

Do not nervous! You will be surprised - actual exam is easier than you excpect. There are many question on general knowledge and intuition. If you read Decks for 2 times than you will pass it 80-90.
 
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Hatico said:
Do not nervous! You will be surprised - actual exam is easier than you excpect. There are many question on general knowledge and intuition. If you read Decks for 2 times than you will pass it 80-90.
Click to expand...
Thanks Hatico but 🙁🙁 I am an FTD too.....so need to hit it in late 80s! But you said most of it wasn't from decks/kaplan???I doubt if just the decks are going to work for that.😕
 
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Holly J said:
Thanks Hatico but 🙁🙁 I am an FTD too.....so need to hit it in late 80s! But you said most of it wasn't from decks/kaplan???I doubt if just the decks are going to work for that.😕
Click to expand...

I said ''many", not ''most''🙂
row "late 80's" is equal to 77-80% of correct answers. i'm sure you will get it.
 
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as usual i have doubts😳
so, please help me
HOLLY J thanku in advance, u have been great help🙂

1. does brain utilize fatty acids as fuel?
2.Is secretion of saliva stimulated by both sym and parasym system?
3. Coenzyme for complex II of oxidative phoshprylation. is it ubiquinone or succinyl
co-A
4. By- products of urea cycle- arginine or fumarate
5. which nerve does not innervate gingiva? XII or infraorbital
6. which cusp is larger M-D in primary mandibular molar? MB or DB
😕😕😕😕😕😕😕
 
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IMFdoc said:
as usual i have doubts😳
so, please help me
HOLLY J thanku in advance, u have been great help🙂

1. does brain utilize fatty acids as fuel?
2.Is secretion of saliva stimulated by both sym and parasym system?
3. Coenzyme for complex II of oxidative phoshprylation. is it ubiquinone or succinyl
co-A
4. By- products of urea cycle- arginine or fumarate
5. which nerve does not innervate gingiva? XII or infraorbital
6. which cusp is larger M-D in primary mandibular molar? MB or DB
😕😕😕😕😕😕😕
Click to expand...
1. It doesnt use FAs.
2.Both
3.Ubiquinone is the coenzyme for succinate DH complex.
4.Havent heard Hypoglossal innervating gingiva!
5.MB I guess....never heard of DB being larger in any aspect.
 
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before birth the formed elements are also produced in yolk sac,liver ,spleen,lymph nodes.my questions is .is that true for lymph nodes too.just reading decks is it rite?
 
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