Download KUHS MBBS First Year 2013 Feb 103001 Physiology Paper I Question Paper

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Code: 103001

First Professional MBBS Degree Supplementary Examinations, February 2013

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PHYSIOLOGY – Paper I

Time: 3 Hours

Total Marks: 50

• Answer all questions
• Draw Diagrams wherever necessary

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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)

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Short essays (2x5 =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 (5x3=15)

4. Mechanism of HCl secretion by gastric parietal cells

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5. Haemophilia
6. Timed vital capacity
7. Factors influencing venous return
8. Plasma cell

Draw and label (2x2½=5)

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9. Nephron
10. ECG of lead II

Explain the physiological basis of the following (5x2=10)

11. Physiological jaundice
12. Deglutition apnoea

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13. Reticulocytosis
14. Alveoli do not collapse during expiration
15. Bleeding tendency in Vitamin K deficiency