KUHS First Professional MBBS Degree Examination 103001 February 2013 PHYSIOLOGY – Paper I Question Paper

103001 February 2013 PHYSIOLOGY – Paper I

Code: 103001 Reg. no.: …………………
First Professional MBBS Degree Supplementary Examinations, February 2013
PHYSIOLOGY – Paper I
Time: 3 Hours Total Marks: 50
• Answer all questions
• Draw Diagrams wherever necessary
Long essay (10)1. A 48 year old man suffering from diabetes mellitus had increased frequency of
micturition
• What is the physiological basis of the polyuria
• What are the mechanisms operating in the nephron for the concentration of urine
• Add a note on free water clearance (3+6+1=10)Short essays (2×5 =10)2. Explain the ionic basis of pacemaker potential with the aid of a labeled diagram,.
Mention the changes during sympathetic stimulation
3. Explain the mechanism of temperature regulation in a cold environment

Answer briefly (5×3=15)4. Mechanism of HCl secretion by gastric parietal cells
5. Haemophilia
6. Timed vital capacity
7. Factors influencing venous return
8. Plasma cell.
Draw and label (2×2½ =5)9. Nephron
10. ECG of lead II
Explain the physiological basis of the following (5×2=10)11. Physiological jaundice
12. Deglutition apnoea
13.Reticulocytosis
14. Alveoli do not collapse during expiration
15. Bleeding tendency in Vitamin K deficiency

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