57. The primary germ layer endoderm is derived from :

a) Embronal disc b) Yolk sac
c) Amniotic cavity d) Placenta


ANS. b

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55.Which of the following is NOT a Neural Crest Derivatives:

a. Odontoblasts b. Bones of the face and skull
c. Melanocytes d. None

ANS>D

Neural Crest Derivatives

• · Connective tissue and bones of the face and skull
• 
  
• · Cranial nerve ganglia
• 
  
• · C cells of the thyroid gland
• 
  
• · Conotruncal septum in the heart
• 
  
• · Odontoblasts
• 
  
• · Dermis in face and neck
• 
  
• · Spinal (dorsal root) ganglia
• 
  
• Sympathetic chain and preaortic ganglia
• Parasympathetic ganglia of the gastrointestinal tract
• Adrenal medulla
• Schwann cells
• Glial cells
• Arachnoid and pia mater (leptomeninges)
• Melanocytes

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54. Otic ganglion is innervated by which nerve ?

a.) vagus b.) occulomotor
c.) facial d.) Glossopharyngeal

ANS> d


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53.Broca’s area is:

1. 44 and 45.
2. 40 and 42.
3. 43 and 44.
4. None.


ANS>b
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52.Hypoglossal nerve does not supply:

1. Genioglossus.
2. Palatoglossus.
3. Styloglossus.
4. Hypoglossus.


ANS>b
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51. The suprameatal triangle overlies the:

1. Mastoid antrum. 2. Mastoid air cells.
3. Antrum. 4. Facial nerve


ANS. A
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50.In a obese person, BMI is :

a)>10 b)>20
c)>30 d)>40


ANS: C


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47.Perforators are not present at the:

a. Ankle b. Distal calf
c. Mid thigh d. Below the inguinal ligament

ANS. D
Explanation: -Perforators connect the superficial veins with the deep veins. -There are about 5 perforators along the great saphenous vein - 1.in the mid-thigh; 2. Below knee; 3, 4 & 5. near the lower leg and ankle. -Great saphenous vein itself drains into the femoral vein below the inguinal ligament.

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39.The most common site for CSF rhinorrhea

a. frontal bone b. ethmoid bone
c. tegmen tympani d. none

ANS. b ethmoid bone

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38.The largest sized pororsity is:

1. Micro porosity. 2. Pin hole porosity.
3. Suck back porosity 4. Gas inclusion porosity

ANS.3 ref Skinner’s 10th -518


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36.The first dental college in India was started in Calcutta by Dr. Rafiuddin Ahmed in:

1. 1930 2. 1925
3. 1920 4. 1915

ANS.3 ref Soben Peter-12


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35.The ability of a test to identify correctly all those who have the disease, that is minimum false negative result is:

1. Predictivity 2. Negativity
3. Sensitivity 4. Specificity

ANS.2 ref Park-408

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34.Which of the following point is located at geographic center of ramus?

1. Ptm point. 2. Key point.
3. Xi point. 4. Gonion.

ANS. 3.ref pg 98 Gurkeerat Singh – 1st Ed.


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32.Which nerve passes through Menke’s cave?

1. Abducent. 2. Facial. 3. Trigeminal. 4. Trochlear.

ANS.3
REF. (BDC III - 100)


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31.Which of the following malocclusion has about 75% of hereditary component associated with it?

1. Class I.2.II.3.III.
4. Both 1 and 3.

ANS.3


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30.Which of the following is also known as scissors bite?

1. Simple posterior cross bite. 2. Buccal non occlusion.
3. Lingual non occlusion. 4. None of the above.

ANS. 2


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28.Which of the following methods of study of physical growth are not longitudinal?

1. Craniometry. 2. Anthropometry.
3. Cephalometric radiography.
4. Both 1 and 2.

ANS. 1.
ref pg 8 Gurkeerat Singh – 1st Ed.


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26. The most common cause of failure of the IDN “Inferior Dental Nerve” block is

A. Injecting too low
B. Injecting too high
ANS. A

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25. The average force required to condense gold with a condenser point of 1mm diameter is

a. 10 pounds. b. 15 pounds.
c. 20 pounds. d. 25 pounds.
Ans. B.

A force of 15 pounds in considered optimal and is well within the physiologic limits of the tooth. Forces of magnitude 3.75 pounds are recommended for condenser nibs of 0.5 mm diameter, 8.43 pounds for 0.75 mm diameter and 15 pounds for 1mm diameter nibs.

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24.Heart failure cells are seen in the following condition

1. CVC lung b.CVC liver c.CVC spleen
   

Ans.(a): Refg. 185/2nd Harish mohan

-CVC of lung occurs in test heart failure especially in rheumatic mitral stenosis so that there is consequent rise in pulmonary venous pressure.

-Histologically the breakdown of erythrocytes liberates haemosiderin pigment which is taken up by alveolar macrophages, so called heart failure cells, present in the alveolar lumina.

-CVC of liver occurs in right heart failure

-cut surface shows “nutmeg liver”.

-microscopically centrilobular haemorrhagic necrosis may be seen.

-CVC of spleen seen in right heart failure

-microscopically gamna-gandy bodies (or) syderofibrotic nodules are seen.

Ref.286/harshamohan.

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