FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
DECEMBER 2017
PHYSIOLOGY
PAPER III

POSSESSION/USE OF CELL PHONES OR ANY SUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE EXAMINATION HALL.
Time 3 hours PHY/D/17/36/III
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. Draw a labeled diagram of neuro muscular junction in
smooth muscle.
Molecular basis of smooth muscle contraction.
Plasticity in smooth muscles

2. A. Sensory transduction in:
Mechanoreceptors
Cochlear hair cells
Taste buds
B. Weber-Fechner Law

3. Define learning and memory.
Classification of memory and their neural basis.
Alzheimer's disease

4. Draw a schematic diagram to trace the pain pathway
Types and qualities of pain
Central inhibition of pain

5. What are the association areas of cerebral cortex and
where are they located?
Functions of various association areas
4+6
6. Draw a schematic diagram of Papez circuit
What is the role of limbic system in regulation of rage
and fear?
4+6
7. Enumerate the properties of synapses
Direct and indirect inhibition of synapses
Long term potentiation and depression.

P.T.O.
FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
DECEMBER 2017
PHYSIOLOGY
PAPER III

POSSESSION/USE OF CELL PHONES OR ANY SUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE EXAMINATION HALL.
8. List the postural reflexes integrated at the level of
spinal cord, medulla, midbrain and cortex
Hemisection of spinal cord
Decerebrate rigidity

9. Differentiate between REM and NREM sleep
Mechanism of alerting response
6+4
10. Biological rhythms in humans
Physiological basis of Jet lag.
7+3