M.B.B.S-M.B.B.S 1st Year PHYSIOLOGY – Paper I(Kerala University of Health Sciences-2013)

Code: 103001                                     Reg. no.: …………………

                          First Professional MBBS Degree Supplementary Examinations,

                                                             February 2013

                                                          PHYSIOLOGY – Paper I

Time: 3 Hours                                                                          Total Marks: 100

• Answer all questions
• Draw Diagrams wherever necessary

Long essay (20)

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 

 

 

Short essays (2x10 =20)

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 (5x5=25)

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 (2x5 =10)

9. Nephron
10.ECG of lead II

Explain the physiological basis of the following (5x5=25)

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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Earning:  ₹ 7.05/-