C 2743
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. Explain in detail (Any Two) (10)
a. What do you mean by term "Active
Transport"? Explain in detail giving
examples each of primary and secondary
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active transport.b. Explain in detail about Erythropoeisis.
c. Explain the various phases of Nerve Action
Potential? Discuss the ionic basis of each
phase.
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2. Write briefly on: (Any Two) (6)a. Functions of Gastric secretions.
b. Enumerate the components of Pancreatic
secretion. Explain its regulation.
c. Anticoagulants.
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3. Write briefly on: (Any One) (3)a. Measurement of plasma volume
b. Draw well labelled diagram of eosinophil.
What are its functions?
4. Write briefly on: (Any Two) (6)
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a. Write detail aboutTM Gap Junctions?b. Define Fatigue. Write in the basic
mechanism of infatiguability of Heart?
c. Differentiate between Meissner's and
Myenteric Plexus.
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Section 2
1. Explain in detail: (Any Two) (10)
a. What are the various waves of ECG ?
Discuss the features of each wave
b. Define Stroke volume and explain the
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various factors which regulate it.c. Write in detail about the non respiratory
functions of Lung.
2. Write briefly on: (Any Two) (6)
a. Chemical control of respiration.
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b. Baroreflexc. Role of Hypothalamus in temperature
regulation.
3. Write briefly on - (Any One) (3)
a. Physiological and Pathological variations of
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Heart rate.b. Caisson disease
4. Short explanatory objective questions: (Any Six)
(6)
a. What do you mean by Apoptosis?
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b. What is the effect of parasympathetic systemstimulation on gastric secretion?
c. What is the effect of temperature on Basal
Metabolic Rate?
d. Define Fick's Law of diffusion.
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e. Mention the type of nerve fibers carrying"cold sensationaTM
f. Which cells secrete the enzyme
Enterokinase?
g. Define Vital Capacity
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h. Which plasma proteins mainly contribute toColloid Oncotic PressureTM?
i. Why skeletal muscles have striated
appearance?
j. What is All or None Phenomenon?
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