Q.P.Code:103001 Reg.no:…………….
First professional
MBBS Degree Supplementary Examinations, February 2014
PHYSIOLOGY-PAPER I
Time: 3Hours
Total Marks:50
- Answer all questions
- Draw diagrams wherever necessary
Long essay (10)
1. A 40 year old man was admitted to hospitality complaints
of difficulty in breathing and shortness of breath following a head injury. Answer
the following:
- With the help of a diagram describe two types of periodic breathing
- Explain the physiological basis for the changes in periodic breathing
- Describe the role of peripheral chemo receptors in regulation of normal respiration (3+2+5=10)
Short essay (2×5=10)
2. Discuss the factors affecting cardiac output and add a
note on Brainbridge reflex
3. Describe the counter current multiplier in the kidney
Answer briefly (5×3=15)
4. Hypoxic hypoxia
5. Proteolytic pancreatic enzymes
6. Auto regulation of glomerular filtration rate
7. First and second heart sounds
8. Gastric emptying time
Draw and label (2×2.5=5)
9. Left ventricular pressure changes recorded during normal
cardiac cycle
10. Effect of pH on the oxygen-hemoglobin dissociation curve
Explain the physiological
basis of the following (5×2=10)
11. Oxygen debt
12. Receptive relaxation
13. Prolonged standing results in fainting attacks
14. Prolonged action potential in cardiac muscle
15. Protective effect of vaccination
