Download RGUHS MBBS 2021 Feb 1022 Physiology Paper I Rs 4 Previous Question Paper

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Rajiv Gandhi University of Health Sciences, Karnataka

MBBS Phase - I (CBME) Degree Examination - 12-Feb-2021

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Time: Three Hours Max. Marks: 100 Marks

PHYSIOLOGY - PAPER- I (RS-4)

Q.P. CODE: 1022

Your answers should be specific to the questions asked

Draw neat, labeled diagrams wherever necessary

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LONG ESSAYS 2 x 10 = 20 Marks

1. Mention the events of a cardiac cycle with their durations. Explain the left ventricular pressure and volume changes during cardiac cycle. (3+7)
2. Name the neural regulatory centers of respiration and explain their role in regulation. Illustrate Cheyne-Stokes breathing. (3+4+3)

SHORT ESSAYS 10 x 5 = 50 Marks

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3. Explain feedback regulation with suitable examples. (2.5+2.5)
4. Describe the effects of mismatched blood transfusion. (5)
5. A 16 year old boy was brought to the hospital with excessive bleeding from an injury in his foot. He had a past history of similar delayed stoppage of bleeding associated with swelling of injured parts following blunt trauma. One of his paternal uncles also had a similar history. Investigation revealed: Hb 14 g/dl, Platelet count 3.5 lakhs/mm3, BT -5 minutes, CT - 12 minutes.
   1. Mention the probable diagnosis and cause for the same.
   2. Mention the type of inheritance of this disorder.
   3. Name another bleeding disorder with the cause. (2+1+2)

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6. Explain the role of complement system in immunity. (5)
7. Explain the role of renin-angiotensin-aldosterone system in BP regulation. (5)
8. List the theories of auto-regulation of blood-flow and explain any two. (2+3)
9. Define and classify hypoxia. Explain their causes and treatment. (2+3)

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10. Describe the defecation reflex with illustration. (5)
11. Explain the cause for splay in reabsorption of glucose by Nephrons. (5)
12. Define GFR. Explain the factors regulating the same. (1+4)

SHORT ANSWERS 10 x 3 = 30 Marks

13. List the functions of WBCs. (3)

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14. Explain the basis of enhanced immune response to booster doses of vaccine. (3)
15. Mention the symptoms and ECG changes in ischemic heart disease. (2+1)
16. Illustrate and mention the physiological basis of radial pulse tracing. (3)
17. Define functional residual capacity. Mention its normal value and methods for its measurement. (1+1+1)
18. Mention the composition and functions of bile. (1.5+1.5)

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19. Define jaundice. Mention the clinical features of obstructive jaundice. (1+2)
20. Mention its cause and treatment of achalasia cardia. (1+2)
21. Compare and contrast cortical and juxta-medullary Nephrons. (3)
22. Mention the sites of water reabsorption in Nephrons with its principle. (3)

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