First Year MBBS Examination
I MBBS Physiology Paper 1
Date: 12-06-2016
Time: 3 hours
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Max Marks: 50Instructions: 1. Answer to the points. 2. Figure
to the right indicates marks. 3. Use separate
answer books for each section. 4. Draw
diagrams wherever necessary. 5. Write legibly.
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**Section 1**
1. Explain in detail: (any two) (10)
a. Explain "deglutition reflex" in detail. Write
note on 'Achalasia cardia'? (A.270) (8.461)
b. Write in detail about cellular immunity'.
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Write note on helper T cellsc. What is composition of Pancreatic juice?
Write note on acute pancreatitis. (A.246)
(8.482)
2. Write brief notes on (any two) (6)
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a. Explain properties of action potential inskeletal and cardiac muscle fibers.
b. Write in detail about active transport
across cell membrane
c. Functions of saliva (A.225) (B.739)
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3. Write brief on (any one) (3)a. Name various cell organelles. Write in
detail about structure and functions of cell
membrane
b. Write in details about various cell junctions
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4. Give brief on (any two) (6)a. Reticulo-endothelial system
b. Innate immunity (A.107) (B.139)
c. Blood coagulation tests (A.133) (8.163)
**Section 2**
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1. Explain in detail (any two) (10)a. Write in detail about role of anterior
hypothalamus in regulation of body
temperature. Write note on mechanism of
generation of fever
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b. Differences between sympathetic andparasympathetic systems
c. Write in detail about various types and
treatment of hypoxia (A-756) (8.352)
2. Write briefly on (any two) (6)
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a. Various leads of ECGb. Baro-receptor (Sino-aorti reflex (A.633)
c. Define 'shock' and give its types. Give
physiological basis of treatment of shock.
(A-684)
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3. Write briefly on (any one) (3)a. Mechanics of inspiration (A.714)
(8.297.316)
b. Effects of high pressure of gases on body
4. Answer in 2-3 sentences (any 6) (6)
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a. Explain mechanism of action of EDTA asanticoagulant
b. Name 2 anta-acids
c. Give partial pressures value for oxygen
and carbon di-oxide in venous blood
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d. Name two muscles involved in forcefulexpiration
e. Define dead space (A.732) (8.318)
f. Name two parasympathomimetic drugs
g. Give two examples of passive immunity
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h. Name two functions of AV node (A.529)(8.188)
i. Which type of antibody has largest number
of antigen binding sites?
j. Name two indications of transfusion of
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fresh frozen plasma***