Preli 111
First Year MBBS Examination
I MBBS Physiology Paper 1
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 11.Write short notes on: (any two)
(10)
a. Classify leukocytes and give their physiological variations and functions
b. Define diffusion and explain factors affecting net rate of diffusion
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c. Explain physiological basis of Blood groups and mention hazards of mismatch blood transfusion2A.Write Short notes on (any two out of three)
(6)
a. Regulation of salivary secretion
b. Justify the statement "Bile is essential for life"
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c. Applied physiology of "Motor Unit"2B.Write in short note any one out of two
(3)
a. Conduction of nerve impulse in myelinated nerve
b. Refractory period in cardiac muscle
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3.Write Short notes on (any two)(6)
a. Mechanism of heat loss from the body
b. Effects of sympathetic stimulation on CVS
c. Mass peristalsis
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Section 24.Write Short notes on (any two)
(10)
a. Define blood pressure give its normal values of various blood pressure and explain sino-aortic mechanism
b. Explain role played by various pressures during quite and forced respiration
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c. Explain ventricular events with pressure volume of blood and heat sounds during normal cardiac cycle5A.Write Short notes on (any three out of five)
(6)
a. Give various types of cardiac output with their values and mention significance of cardiac reserve
b. Draw tracing of normal ECG and mention importance of R-R interval
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c. Factors affecting normal lung compliance5B.Write in short on any one:
(3)
a. Periodic breathing
b. Importance of O2 therapy in various phypoxia
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6.Write Justification of following statements:(any six)
(6)
a. Gastric atrophy lead into anemia
b. Marey's law is not always true
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c. CO2 is more potent for regulation of respirationd. Blood fails to clot intravascularly
e. Gastrocolic reflex
f. Effect of T receptors on CVS
g. Role of satiety center on food intake
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h. Normal body temperature in Centigrade and Fahrenheit***