Download NTRUHS MBBS 1st Year 2022 January New folder 503A Physiology Paper I Question Paper

Q.P. CODE:503-A

DR. NTR UNIVERSITY OF HEALTH SCIENCES:AP:VIJAYAWADA-520 008

M.B.B.S. DEGREE EXAMINATION – JANUARY, 2022

FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY

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PAPER-I

Time: 2 1/2 Hours Max. Marks : 80

Note: Answer all questions

Illustrate your answers with suitable diagrams

1. With the help of a suitable diagram, describe the 02-Hb dissociation curve and mention two factors shifting the (6+2+4+3) curve to right. Enumerate four special features of pulmonary circulation. What is Haldane effect?

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2. Define systolic and diastolic blood pressure and give their normal values. Explain the baroreceptor reflex in response to decreased blood pressure.

SHORT ANSWER QUESTIONS: 5X4=20

3. hypotension
4. Facilitated diffusion
5. Mechanism of humoral immunity

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6. Megaloblastic anemia
7. Mechanism of HCI secretion from stomach

WRITE BRIEFLY ON: 5X2=10

8. Regulation of pancreatic secretion Mechanism and
9. function of peristalsis and segmental contraction of intestine

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10. A new born male presented with anemia, jaundice and generalized edema. His blood group was AB+ and the mother's blood group was A-. Three years back his sister was born and she was normal with blood group of A+.
    1. What is your provisional diagnosis?
    2. What is the cause of anaemia?
    3. How will you treat this condition?
    4. How could you have prevented these symptoms?

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11. Counter current multiplier Mechanism of glucose absorption in renal tubule
12. A 70 year old male presented with breathlessness on exertion. On examination, his pulse was 110/min and he had edema in the ankle and feet. The liver and spleen were found to be enlarged and jugular venous pulse was raised.
    1. What is your probable diagnosis?
    2. Explain the pathophysiology of edema in this condition
    3. Mention one drug treat this condition and write its mechanism of action.

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