Lets discuss questions of NBDE 1

[d dimps]

---

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1). .Which angle does a P Wave makes on ECG?
a). .45 degree
b). .180 degree
c). .0 degree
d). .-45 degree
e). .-180 degree.

2). .What is endogenous cholesterol? Most endogenous cholesterol is converted to?
a). .Glucose
b). .Cholic acid
c). .Steroid
d). .Oxaloacetete
e). .Ketone bodies

3). .Which of the following statement is correct regarding Glioblastoma multiforme?
a). .the tumor is most common before puberty
b). .it is classified as a type of meningioma
c). .it is most common type of Astrocytoma.
d). .Its prognosis is generally more favourablethan Grade 1 astrocytoma.
e). .It is derived from the epithelial lining of ventricles

4). .Which of the following pathological changes is irreversible?
a). .fatty changes in liver cells
b). .karyolysis in myocardial cells
c). .glycogen deposition in hepatocyte nuclei
d). .hydropic vacuolization of renal tubular epithelial cells.

5). .An example of Synergism is the effect of?
a). .insulin and glucagon on blood glucose
b). .estrogen and progesterone on uterine motility
c). .growth hormone and thyroxine on skeletal growth.
d). .Antidiuretic hormone and aldosterone on potassium excretion.

 

[shaby]

Thanks afistis!! I have b marked in my paper for Q 2 as well!! But not sure why...isn't pterygomandibular sling same as pterygomandibular raphe which is btw super constrictor and buccinator, not medial ptergyoid &...? So why it is not C???

 

[KiTmAn]

Fail. #2 is B, not C. Positive.

dam...sorry bout that..didnt read except!

 

[shaby]

I still do not get it!! Can someone please explain why pterygomandibular sling (raphe ?) is the interdigitations btw medial pterygoid & masster??
IS this correct?

 

[aphistis]

I still do not get it!! Can someone please explain why pterygomandibular sling (raphe ?) is the interdigitations btw medial pterygoid & masster??
IS this correct?

You're confusing your terms. The pterygomandibular raphe is simply the line along which the superior pharyngeal constrictor and buccinator muscles meet. The pterygomasseteric sling refers to the idea that on each side, the mandible is "suspended" from the skull by the medial pterygoid and masseter muscles, which insert along the angle of the mandible on the medial and lateral surfaces.

 

[shaby]

Thanks, that helped a lot!!
Could you please tell me the answer to these as well:

Q1- articulating surface of adult mandibular condyle is covered by?

a) elastic tissue
b) synovial memb
c)hylaine cartilage
d)perichondrium
e)collagenous CT

Q2- The sympathetic innervation to structures of head & neck is distributed via the:
a-BVs
b- facial planes
c-lymphatic vessels
c- hyoid musculature
d- CN 3, 7, 9, 10

Q3- Which of the following two muscles prevent food from entering the nasopharynx?
a- mylohyoid and palatoglossus
b-styloglossus and palatoglossus
c-tensor veli tympani and stylopharyngesou
d- tensor veli palatini and levator veli palatini
e- muculus uvulae and the inferior pharyngeal constricotr

Thanks!!!

 

[drknali]

Thanks, that helped a lot!!
Could you please tell me the answer to these as well:

Q1- articulating surface of adult mandibular condyle is covered by?

a) elastic tissue
b) synovial memb
c)hylaine cartilage
d)perichondrium
e)collagenous CT

Q2- The sympathetic innervation to structures of head & neck is distributed via the:
a-BVs
b- facial planes
c-lymphatic vessels
c- hyoid musculature
d- CN 3, 7, 9, 10

Q3- Which of the following two muscles prevent food from entering the nasopharynx?
a- mylohyoid and palatoglossus
b-styloglossus and palatoglossus
c-tensor veli tympani and stylopharyngesou
d- tensor veli palatini and levator veli palatini
e- muculus uvulae and the inferior pharyngeal constricotr

Thanks!!!

Q1.e collage...........okeson
Q2.a,Blood vessels[usmle lect notes,,section 3]
Q3.d tensor vpal,[answer in usmle anat lecture notes,achland video]

 

[shaby]

Thanks a lot!! Can you please answer these:

1- Apical granules in parenchymal cells of salivary gland represent:
a- pigment
b- complex lipids
c- primary lysosomes
d- large mito
e- secretion precursors

2-in erythropoeisis which of the following increases from proerythroblast to mature erythrocyte?
a-cell size
b-phagocytic ability
c-cytoplasmic acidophillia
d-cytoplasmic basophillia

3- Touch receptors are MOST numerous per unit area in the mucosa of which of the following?
a) Uvula
b) Hard Palate
c) Attached gingiva
d) Tip of the tongue
e) Buccal/labial vestibule


Thanks again!!

 

[shaby]

4- sliding movement in temporomandibular joint occurs between:
a- condyles and disks
b- disks and articular eminence
c- condyles and articular capsules
d- mandibular heads and articular eminence

5-enamel rods converge as they pass from DEJ twd surface in area of:
a- cervical line of permenant teeth
b- cervical line of primary teeth

 

[gaya]

1- Apical granules in parenchymal cells of salivary gland represent:
a- pigment
b- complex lipids
c- primary lysosomes
d- large mito
e- secretion precursors <ans>

2-in erythropoeisis which of the following increases from proerythroblast to mature erythrocyte?
a-cell size
b-phagocytic ability
c-cytoplasmic acidophillia<ans.
d-cytoplasmic basophillia

3- Touch receptors are MOST numerous per unit area in the mucosa of which of the following?
a) Uvula
b) Hard Palate
c) Attached gingiva
d) Tip of the tongue <ans>
e) Buccal/labial vestibule

 

[gaya]

please someone ans these
A urine sample with a PH of 5.7 has a hydrogen ion concentration of approximately
-3
a-2*10 M
-6
b-2*10 M
-2
c-2*10 M

126-For which is the first group of the flwng pairs more likely to be located on the surface of a globular protein than the second group of the pair?
a- -CONH2 -COO-
b- -CH2 -CH(CH2)2
c- -CH2OH -NH4+
d- -CH3 -CH2OH
e- -CH2SH -COO
140-A 0.2 mole/lit nacl solution and a 0.2 mole/lit glucose solution are separated by a membrane that is impermeable to these solute but is permeable to water. which of the flwng statements is correct ?
a-there will be no net movement of water to either solution
b-water will go fromthe glucose to the saline solution
c-water will go from the saline to the glucose solution
d-concentration of glucose will decrease
e-concentration of nacl will increase.
sectioning of the hypothalamic-hypophyseal stalk will produce each of the flwng effects except one,
a-infertility
b-hypercalcemia
c-reduced BMR
d-atrophy of the adrenal cortex

 

[make you smile]

please someone ans these
A urine sample with a PH of 5.7 has a hydrogen ion concentration of approximately
-3
a-2*10 M
-6
b-2*10 M
-2
c-2*10 M

126-For which is the first group of the flwng pairs more likely to be located on the surface of a globular protein than the second group of the pair?
a- -CONH2 -COO-
b- -CH2 -CH(CH2)2
c- -CH2OH -NH4+
d- -CH3 -CH2OH
e- -CH2SH -COO
140-A 0.2 mole/lit nacl solution and a 0.2 mole/lit glucose solution are separated by a membrane that is impermeable to these solute but is permeable to water. which of the flwng statements is correct ?
a-there will be no net movement of water to either solution
b-water will go fromthe glucose to the saline solution
c-water will go from the saline to the glucose solution
d-concentration of glucose will decrease
e-concentration of nacl will increase.
sectioning of the hypothalamic-hypophyseal stalk will produce each of the flwng effects except one,
a-infertility
b-hypercalcemia
c-reduced BMR
d-atrophy of the adrenal cortex

3)Water will go from glucose to Nacl.Glucose remains as one unit whereas Nacl consists of two ions-Na and Cl.(me thinks)

4)Hypercalcemia should be the answer as hypothalamus or pituatary do not have any effect on parathyroid glands.Parathyroid glands produce PTH which is the main regulator of calcium metabolism.
The other choices infertility,reduced BMR and atrophy of adrenal cortex will occur as FSH,LH,thyroxine and ACTH are produced by the anterior pituatary under the influence of hypothalamus.Hope this helps!

 

[gaya]

thank u but for the other q the ans?

 

[aim high]

plz answer this question--

mature pulp consists of which type of connective tissue--
1.dense
2.loose

iam a bit confused with the term MATURE---does it mean aged pulp or pulp in fully developed tooth..can any 1 plz explain this.

thankyou very much.

 

[aim high]

one more--
periapical abscess of mandibular 1st premolar drains lingually into which SPACE--

1.sublingual space
2.submandibular space .

thank you

 

[pbkal]

one more--
periapical abscess of mandibular 1st premolar drains lingually into which SPACE--

1.sublingual space
2.submandibular space .

thank you

answer-sublingual space

 

[pbkal]

4- sliding movement in temporomandibular joint occurs between:
a- condyles and disks
b- disks and articular eminence
c- condyles and articular capsules
d- mandibular heads and articular eminence

5-enamel rods converge as they pass from DEJ twd surface in area of:
a- cervical line of permenant teeth
b- cervical line of primary teeth

ans for 1-(b).translational or sliding movement takes place in the upper compartment of tmj.....so,i think ans shud be (b).

ans for 2-(b)--not sure

pls correct if im wrong...

 

[amy08]

which explain by action of amylase continue for some time aftre swallowing
a)Gastric HCL increase the activity of amylase
b)amylase protected in the bolus frm inactivating action of HCL
c)Gastric mucin lubricate the bolus and assited the activity of amylase
d)water absortion by stomach enhance the activity of amylase😕

 

[aim high]

answer-sublingual space

thanks for the answer.

 

[aim high]

which explain by action of amylase continue for some time aftre swallowing
a)Gastric HCL increase the activity of amylase
b)amylase protected in the bolus frm inactivating action of HCL-----ANSWER
c)Gastric mucin lubricate the bolus and assited the activity of amylase
d)water absortion by stomach enhance the activity of amylase

 

[amy08]

thanks for answer

 

[shaby]

Thanks for the answers. All were correct. It would be great if you could answer the following DA Q's:

1- Which of PRIMARY teeth show earliest evidence of calcification?
a-incisors
b- canines
c- M1
d-M2

2- Each is correct in mutually protected occlusion EXCEPT:
a-condyles are in most superoanterior position in closure
b- ant teeth contact more heavily than post teeth
c- none of post teeth contact on the NW side when mandible moves laterally

3-Which muscle position the condyles in MOST superior anterior position?
a-masseter and digastirc
b- masseter and Medial pterg
c- temporalis and superior lateral petryg

 

[shaby]

also,

4- axial inclination of palatal root of max second molar?
a- D & L
b- M & F
c- D & F

5- The cause of an acute abscess of max left LI is radiographically is shown as :
a- agenesis
b-diceleration
c-concrescence
d-dense in dente
e- enamel perals

 

[pbkal]

Thanks for the answers. All were correct. It would be great if you could answer the following DA Q's:

1- Which of PRIMARY teeth show earliest evidence of calcification?
a-incisors-answer
b- canines
c- M1
d-M2

2- Each is correct in mutually protected occlusion EXCEPT:
a-condyles are in most superoanterior position in closure
b- ant teeth contact more heavily than post teeth-answer(not sure)
c- none of post teeth contact on the NW side when mandible moves laterally

3-Which muscle position the condyles in MOST superior anterior position?
a-masseter and digastirc
b- masseter and Medial pterg-answer
c- temporalis and superior lateral petryg

pls correct wrong answers

 

[pbkal]

also,

4- axial inclination of palatal root of max second molar?
a- D & L
b- M & F
c- D & F-answer

5- The cause of an acute abscess of max left LI is radiographically is shown as :
a- agenesis
b-diceleration
c-concrescence
d-dense in dente-answer
e- enamel perals

pls correct if im wrong..

 

[shaby]

I'm not sure about the answer either. Can anyone positive help please?

Also, when are condyles in most superoanterior position?

 

[firasoblast]

Thanks for the answers. All were correct. It would be great if you could answer the following DA Q's:

1- Which of PRIMARY teeth show earliest evidence of calcification?
a-incisors
b- canines
c- M1
d-M2

2- Each is correct in mutually protected occlusion EXCEPT:
a-condyles are in most superoanterior position in closure
b- ant teeth contact more heavily than post teeth
c- none of post teeth contact on the NW side when mandible moves laterally

3. Which of the following muscle positions the condyle in the most superior anterior position?
a.masseters and digastrics.
2.masseter and medial pterygoids
3.temporalis and sternocleidomastoids.
4 temporalis and superior lateral pterygyoids.
5.medial ptreygyoid and sternocleidomastoid.

Positive for 1 and 2.
3rd question is very controversial. I had to edit the post and delete my answer to it.

 

[shaby]

Thanks firasoblast!!
So can you tell me what is the most supero anterior position of condyles? Isn't it protrutsion? So why temporalis?
Doesn't temporalis only close and retrude the mandible???

 

[amy08]

each of the following situations correctly describe the myocardial infarection except
a)most acute MI caused by coronet artery thombosis
b)Acute MI is most com cause of death in developed nations
c)Pain from MI usually relied by vasodilator like nitroglycerine
d)Myocardial necrosis begine 20 -3- min aftercoronery artery thombosis

 

[uabsfm]

4- sliding movement in temporomandibular joint occurs between:
a- condyles and disks
b- disks and articular eminence
c- condyles and articular capsules
d- mandibular heads and articular eminence

5-enamel rods converge as they pass from DEJ twd surface in area of:
a- cervical line of permenant teeth
b- cervical line of primary teeth

4- sliding movement in temporomandibular joint occurs between:
a- condyles and disks
b- disks and articular eminence- ans
c- condyles and articular capsules
d- mandibular heads and articular eminence
correct me if I am wrong.

 

[uabsfm]

4- sliding movement in temporomandibular joint occurs between:
a- condyles and disks
b- disks and articular eminence
c- condyles and articular capsules
d- mandibular heads and articular eminence

5-enamel rods converge as they pass from DEJ twd surface in area of:
a- cervical line of permenant teeth
b- cervical line of primary teeth

5-enamel rods converge as they pass from DEJ twd surface in area of:
a- cervical line of permenant teeth
b- cervical line of primary teeth

e road increase in diameter as it reaches the outer surface ,ratio from inside to outside surface is 1:2, so it diverges as it reaches the surface , but I can not understand the Q, if anybody able to explain then plz do it.

 

[firasoblast]

Thanks firasoblast!!
So can you tell me what is the most supero anterior position of condyles? Isn't it protrutsion? So why temporalis?
Doesn't temporalis only close and retrude the mandible???

I'd answer your question even that I see you had just posted it again in another thread!!

Centric relation is when the condyle is in the anterior superior position against the slopes of the articular eminences, regardless of any tooth to tooth relationship.
so mandible movement here is retrusion starting from rest position.

 

[shaby]

Thanks for the reply. So, condyles are in MOST superoanterior position in CR?
Do condyles move anteroinferior in in mandibular depression? what about in mandibular protrusion?

 

[pbkal]

each of the following situations correctly describe the myocardial infarection except
a)most acute MI caused by coronet artery thombosis
b)Acute MI is most com cause of death in developed nations
c)Pain from MI usually relied by vasodilator like nitroglycerine
d)Myocardial necrosis begine 20 -3- min aftercoronery artery thombosis

i think ans shud be (d).pls correct if im wrong..

 

[toothfairy482]

answer is C.
Pain from myocardial necrosis does not subside by nitroglycerine or any other vasodilator.
Necrosis after thrombosis starts at about 20-24 hours.

 

[uabsfm]

i think ans shud be (d).pls correct if im wrong..

answer to the above q is C.

becuase nitro glycerin is effective only during the acute anginal attack not in MI

 

[uabsfm]

Thanks for the reply. So, condyles are in MOST superoanterior position in CR?
Do condyles move anteroinferior in in mandibular depression? what about in mandibular protrusion?

I think during intial stage of mandibular depression condyle just rotate beneath the articular disk and in further opening of the mouth it will translate with the disk , so it will move anteroinferiorly......... in protrusion they also move antero inferiorly, correct me if I am wrong

 

[greenluster]

Is it just me or is it that some of the practice questions here are really strange and obscure?

Where are you guys finding these questions? And are these questions reflective of the actual difficulty in Part I?

 

[born to win]

Pls try these questions :

Q1 Which of the following are directly associated with destruction of glomerular basement membranes in a patient with glomerulonephritis? A. Eosinophils B. Lymphokines C. IgE antibodies D. Polymorphonuclear leukocytes

Q2Patients with which of the following malignancies have the poorest prognosis? A. Lung cancer B. Malignant melanoma C. Pancreatic carcinoma D. Carcinoma of the colon E. Squamous carcinoma of the tongue


Q3Injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid


Q4 in hypoxic skeletal m eletrons carried by NADH are used to
> produce??

Q5 Compare labial n lingual height of contour of permanent Max central incisor with Mx canine ,the canine heights of contour are:
1. less
2. equal
3. greater
4. different for labial n lingial

 

[pbkal]

Pls try these questions :

Q1 Which of the following are directly associated with destruction of glomerular basement membranes in a patient with glomerulonephritis? A. Eosinophils B. Lymphokines C. IgE antibodies D. Polymorphonuclear leukocytes

Q2Patients with which of the following malignancies have the poorest prognosis? A. Lung cancer B. Malignant melanoma C. Pancreatic carcinoma D. Carcinoma of the colon E. Squamous carcinoma of the tongue-answer(not sure)


Q3Injury of spinal accessory , while in posterior triangle, will cause paralysis of the
A. platysma
B. trapezius -answer
C.splenius capitus
D. sternocleidomastoid
E. inferior belly of omohyoid


Q4 in hypoxic skeletal m eletrons carried by NADH are used to
> produce??

Q5 Compare labial n lingual height of contour of permanent Max central incisor with Mx canine ,the canine heights of contour are:
1. less
2. equal-answer
3. greater
4. different for labial n lingial

pls correct wrong answers...

 

[sukhsukh]

which explain by action of amylase continue for some time aftre swallowing
a)Gastric HCL increase the activity of amylase
b)amylase protected in the bolus frm inactivating action of HCL-----ANSWER
c)Gastric mucin lubricate the bolus and assited the activity of amylase
d)water absortion by stomach enhance the activity of amylase

 

[sukhsukh]

please someone ans these
A urine sample with a PH of 5.7 has a hydrogen ion concentration of approximately
-3
a-2*10 M
-6
b-2*10 M
-2
c-2*10 M

126-For which is the first group of the flwng pairs more likely to be located on the surface of a globular protein than the second group of the pair?
a- -CONH2 -COO-
b- -CH2 -CH(CH2)2
c- -CH2OH -NH4+
d- -CH3 -CH2OH
e- -CH2SH -COO
140-A 0.2 mole/lit nacl solution and a 0.2 mole/lit glucose solution are separated by a membrane that is impermeable to these solute but is permeable to water. which of the flwng statements is correct ?
a-there will be no net movement of water to either solution
b-water will go fromthe glucose to the saline solution
c-water will go from the saline to the glucose solution
d-concentration of glucose will decrease
e-concentration of nacl will increase.
sectioning of the hypothalamic-hypophyseal stalk will produce each of the flwng effects except one,
a-infertility
b-hypercalcemia
c-reduced BMR
d-atrophy of the adrenal cortex

 

[sukhsukh]

1- Apical granules in parenchymal cells of salivary gland represent:
a- pigment
b- complex lipids
c- primary lysosomes
d- large mito
e- secretion precursors

2-in erythropoeisis which of the following increases from proerythroblast to mature erythrocyte?
a-cell size
b-phagocytic ability
c-cytoplasmic acidophillia
d-cytoplasmic basophillia

3- Touch receptors are MOST numerous per unit area in the mucosa of which of the following?
a) Uvula
b) Hard Palate
c) Attached gingiva
d) Tip of the tongue
e) Buccal/labial vestibule

 

[born to win]

pls correct wrong answers...

Why do you think answer is equal for Ques 5 ??

 

[sukhsukh]

why do you think answer is equal for ques 5 ??

yes answer is equal for question 5

 

[aspiring dentis]

1- Apical granules in parenchymal cells of salivary gland represent:
a- pigment
b- complex lipids
c- primary lysosomes..........ans
d- large mito
e- secretion precursors

2-in erythropoeisis which of the following increases from proerythroblast to mature erythrocyte?
a-cell size
b-phagocytic ability
c-cytoplasmic acidophillia.........ans
d-cytoplasmic basophillia

3- Touch receptors are MOST numerous per unit area in the mucosa of which of the following?
a) Uvula
b) Hard Palate
c) Attached gingiva
d) Tip of the tongue........ans
e) Buccal/labial vestibule

Plz correct me If I am wrong.

 

[sukhsukh]

Plz correct me If I am wrong.

answer of 2-d

 

[pbkal]

answer of 2-d

ans for 2 is (c),not (d).

 

[pbkal]

please someone ans these
A urine sample with a PH of 5.7 has a hydrogen ion concentration of approximately
-3
a-2*10 M
-6
b-2*10 M-answer
-2
c-2*10 M

126-For which is the first group of the flwng pairs more likely to be located on the surface of a globular protein than the second group of the pair?
a- -CONH2 -COO-
b- -CH2 -CH(CH2)2-answer
c- -CH2OH -NH4+
d- -CH3 -CH2OH
e- -CH2SH -COO
140-A 0.2 mole/lit nacl solution and a 0.2 mole/lit glucose solution are separated by a membrane that is impermeable to these solute but is permeable to water. which of the flwng statements is correct ?
a-there will be no net movement of water to either solution
b-water will go fromthe glucose to the saline solution
c-water will go from the saline to the glucose solution
d-concentration of glucose will decrease
e-concentration of nacl will increase.
sectioning of the hypothalamic-hypophyseal stalk will produce each of the flwng effects except one,
a-infertility
b-hypercalcemia-answer
c-reduced BMR
d-atrophy of the adrenal cortex

pls correct wrong answers....

 

[sukhsukh]

plz expalain..........

1...Wernicke encephalopathy

2....korsakoff amnestic syndrome

3....stetosis

 

[karma77]

where is the oldest dentin?

where is the oldest enamel ?

what is the action of posterior temporalis ??
retrod
retrod and elevate both not sure ?
protrode