Download MBBS 1st Year 2012 Feb 524053 Physiology Including Bio Physics I Question Paper

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[LA 502]

FEBRUARY 2012

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Sub. Code: 4053

FIRST M.B.B.S. DEGREE EXAMINATION

Revised (Non-Semester) Regulations

PAPER III – PHYSIOLOGY INCLUDING BIO-PHYSICS – I

Q. P. Code: 524053

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Time: Three hours

Maximum: 50 Marks

Answer ALL questions in the same order.

I. Elaborate on :

1. Explain the sliding filament hypothesis and outline the main events in the cross-bridge cycle. (1 x 10 = 10)

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2. What are the components of gastric secretion? Explain the regulation of gastric secretion. (1 x 5 = 5)

II. Write notes on: (10 x 2 = 20)

1. Anticoagulants.
2. G protein.
3. Calcitriol.

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4. Thyroid function tests.
5. Describe the Reflex Arcs involved in micturition.
6. Explain the renal contribution to pH control.
7. Tubulo glomerular feedback mechanism.
8. Functions of plasma proteins.

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9. Haemophilia.
10. Counter current blood flow in the villi.

III. Short Answers on : (10 x 2 = 20)

1. Functions of Na-K pump.
2. Saltatory conduction.

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3. Conn's syndrome.
4. Laron dwarf.
5. Aquaporins.
6. Anion Gap.
7. Macula densa.

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8. Opsonization.
9. Immunological memory.
10. Cholelithiasis.
11. Enterogastric reflex.
12. Peristaltic rush.

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13. Progeria.
14. Pills.
15. Permissive action.

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