FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
DECEMBER 2017
PHYSIOLOGY
PAPER II

POSSESSION/USE OF CELL PHONES OR ANY SUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE EXAMINATION HALL.
Time 3 hours PHY/D/17/36/II
Max. Marks 100
Important instructions:
• Attempt all questions in order.
• Each question carries 10 marks.
• Read the question carefully and answer to the point neatly and legibly.
• Do not leave any blank pages between two answers.
• Indicate the question number correctly for the answer in the margin space.
• Answer all the parts of a single question together.
• Start the answer to a question on a fresh page or leave adequate space between two
answers.
• Draw table/diagrams/flowcharts wherever appropriate.
Write short notes on:
1. Cardiovascular reflexes involved in regulation of blood
pressure
Resetting of baroreceptors in chronic hypertension
7+3
2. Pressure gradients and flow in coronary vessels during
various phases of cardiac cycle
ECG findings and their physiological basis in ischemic
heart disease.
6+4
3. Systemic regulation of cardiovascular mechanisms by
neurohumoral agents.
Triple Response
Endothelium-derived relaxing factor

4. Alveolar ventilation and perfusion ratio under
following headings:
Definition and normal value
Effects of alteration in VA/Q ratio
Affects of gravity on it
Significance

5. Physiological basis of problems which occur when an
individual ascends back rapidly to sea level after
sufficient exposure to high atmospheric pressure in
deep sea.
What are the preventive and curative measures for the
same?
6+4
6. Carbon dioxide transport in blood
Effects of hypoxia and hydrogen ion concentration on
CO2 response curve
6+4
P.T.O.
FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
DECEMBER 2017
PHYSIOLOGY
PAPER II

POSSESSION/USE OF CELL PHONES OR ANY SUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE EXAMINATION HALL.
7. Cardiac arrhythmias under following headings:
Types
Mechanism of development
ECG changes

8. Cardiovascular adjustments that occur in an untrained
individual during moderate exercise.
10
9. Define functional residual capacity and give its normal
value.
What is the significance of functional residual
capacity?
Measurement of functional residual capacity.

10. Define hypoxia.
What are the different types of hypoxia and their
causes?
Give the role of oxygen therapy in each type