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Thursday, January 7, 2016

2012 Question Paper,FIRST M.B.B.S.,Dr. MGR University Question Paper,Paper III – PHYSIOLOGY INCLUDING BIOPHYSICS – I

Dr. MGR University Question Paper
Revised (Non-Semester) Regulations
Q. P. Code : 524053
Time : Three hours Maximum: 50 Marks
Answer ALL questions in the same order.
Draw Suitable diagrams wherever necessary
I. Elaborate on :
 1. Explain the sliding filament hypothesis and outline the main events in the cross-bridge
 cycle. (1 x 10 = 10)
 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.
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.
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.
3. Conn’s syndrome.
4. Laron dwarf.
5. Aquaporins.
6. Anion Gap.
7. Macula densa.
8. Opsonization.
9. Immunological memory.
 10. Cholelithiasis.
 11. Enterogastric reflex.
 12. Peristaltic rush.
 13. Progeria.
 14. Pills.
 15. Permissive action.

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