First professional MBBS degree examinations, September 2011
PHYSIOLOGY- PAPER 2
Time- 3 hrs Max marks -50
- Answer all questions
- Draw diagrams whenever necessary
Long essay: (10)
1. A 50 yrs old male comes with the history of difficulty to
walk. On examination there is rigidity and resting tremors. His gait is
abnormal.
- What is your diagnosis?
- How do you describe this rigidity and the resting tremor and explain their physiological basis.
- Name the parts of the brain involved.
- Describe the important functional connections. (1+3+2+4=10)
Short essay: (2×5=10)
2. Describe the endometrial changes during a normal
menstrual cycle and its hormonal regulation.
3. List any four functions of hypothalamus and explain any
one
Write briefly on: (5×3=15)
4. Milk ejection reflex
5. Disynaptic reflex
6. Mechanism of action of steroid hormones
7. Decelerate rigidity
8. Functions of vestibular apparatus
Draw and label: (2×2.5=5)
9. Cortico spinal tract
10. Auditory pathway
Explain the
physiological basis of the following (5×2=10)
11. Exophthalmos is a clinical feature of thyroid
dysfunction
12. Sertoli cells are important in spermatogenesis
13. Calcium plays a major role in skeletal muscle relaxation
14. Near point of vision recedes rapidly with advancing age
15. Parathyroidectomy leads to signs of neuromuscular
hyperexitability
