Download NTRUHS 1st Year MBBS mcqs Physiology Paper I MCQs Question Paper

Q.P. CODE: M1024020

Dr NTR UNIVERSITY OF HEALTH SCIENCES: VIJAYAWADA- 520008

MBBS DEGREE EXAMINATION - AUGUST, 2024

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FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY - PAPER-I (SET-A)

(Multiple Choice Questions)

Time: 20 Minutes Max Marks: 20

Note: Answer all questions.

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SECTION-I (MCQs - 20 MARKS) 1X2=20

1. During inspiration, intrapleural pressure becomes
   1. equal to zero
   2. more positive
   3. more negative
   4. equal to the pressure in the alveoli

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2. A lack of normal surfactant results in
   1. increased lung compliance
   2. stabilization of alveolar volume
   3. an increased collapsing tendency of the lungs
   4. bronchospasm

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3. The partial pressure of carbon dioxide is highest in
   1. exhaled gas
   2. systemic arterial blood
   3. systemic venous blood

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4. Cyanosis indicates a higher-than-normal blood concentration of
   1. carbon dioxide
   2. hydrogen ions
   3. 2,3 DPG
   4. reduced hemoglobin

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5. The respiratory centers are located in
   1. cerebral cortex
   2. Hypothalamus
   3. Medulla
   4. spinal cord

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6. The main function of albumin is
   1. Determination of blood viscosity
   2. Determination of osmotic pressure of blood
   3. Formation of blood clot
   4. Defense

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7. Clotting time is normal in:
   1. Factor III deficiency
   2. hemophilia
   3. purpura
   4. factor XI deficiency

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8. Immunoglobulins are produced by
   1. neutrophil
   2. monocyte
   3. erythrocyte
   4. plasma cell

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9. Anaemia due to maturation defect is
   1. haemolytic anaemia
   2. microcytic anaemia
   3. normocytic anaemia
   4. megaloblastic anaemia

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10. Vitamin B 12 absorption takes place mainly from:
    1. duodenum
    2. stomach
    3. ileum
    4. jejunum

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11. Wedge pressure represents
    1. left atrial pressure
    2. right atrial pressure
    3. right ventricular pressure
    4. left ventricular pressure

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12. The true statement with regard to second heart sound is,
    1. it coincides with the 'R' wave of E.C.G.
    2. it splits into two components during inspiration
    3. it is due to closure of AV Valves
    4. it makes the onset of ventricular systole

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13. The fourth heart sound is due to
    1. closure of the aortic and pulmonary valves
    2. vibrations in the ventricular wall by the inrush of blood
    3. ventricular filling due to atrial systole
    4. closure of the mitral and tricuspid valves

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14. In a normal heart at rest, the Stroke Volume in ml is:
    1. 50-60
    2. 70-80
    3. 90-100
    4. 110-120

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15. Korotkoff sounds are produced
    1. by the heart
    2. during the recording of blood pressure
    3. in valvular defect
    4. during breathing

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16. The amount of plasma that enters Bowman's capsule per minute is the
    1. glomerular filtration rate
    2. renal plasma flow
    3. renal fraction
    4. renal blood flow

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17. The condition in which urine output is less than 50 ml
    1. dysuria
    2. anuria
    3. enuresis
    4. azotemia

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18. Number of nephrons present in both kidneys together
    1. 20-30 million
    2. 2.3 million
    3. 200-300 million
    4. 2000-3000 million

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19. Amount of blood enters the renal arteries per minute:
    1. 180
    2. 1200 ml
    3. 125 ml
    4. 700 ml

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20. Renin is secreted by
    1. JG cells
    2. renal tubular epithelial cells
    3. mesangial cells
    4. renal interstitial cells

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