Download NTRUHS 1st Year MBBS 2023 January Physiology Paper I Question Paper

CBME

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

MBBS DEGREE EXAMINATION – JANUARY, 2023

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FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY - PAPER-I (SET-D)

(Multiple Choice Questions)

Time: 20 Minutes Max Marks: 20

Note: Answer all questions

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SECTION - I (MCQs- 20 MARKS) 1x20=20

1. The greatest fraction of water reabsorption takes place in
1. Proximal convoluted tubule
2. Distal convoluted tubule
3. Cortical collecting duct

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4. Medullary collecting duct
2. Asphyxia is due to a combination of hypoxia and
1. Reduced oxygen carrying capacity
2. Hypercapnia
3. Hypocapnia

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4. Acidosis
3. The cause for the characteristic features seen when a diver suddenly comes from deep sea to the surface
1. Increased arterial PCO2
2. Increased pH
3. Nitrogen bubbles in the blood

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4. Oxygen bubbles in the blood
4. Ideal site for evaluation of cyanosis in dark complexion individuals is
1. Lips
2. Nail beds
3. Tongue

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4. Ear lobes
5. The common type of electrolyte imbalance seen after blood transfusion is
1. Hyperkalemia
2. Hypokalemia
3. Hypercalcemia

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4. Hypernatremia
6. Cryoprecipitate consists of
1. Packed cells
2. Platelets
3. Coagulation factor I and VIII

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4. Coagulation factor II and IX
7. Decreased arterial PO2 with normal oxygen carrying capacity of blood and rate of blood flow to tissues is
1. Hypoxic hypoxia
2. Anaemic hypoxia
3. Histotoxic hypoxia

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4. Stagnant hypoxia
8. Lymphatic system exists in all organs EXCEPT
1. Liver
2. Lungs
3. Central nervous system

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4. Intestine
9. Ceruloplasmin is responsible for the transport of
1. Iron
2. Steroids
3. Haemoglobin

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4. Copper
10. Which of the following filtered substances is NOT present in normal urine?
1. Sodium
2. Glucose
3. Urea

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4. Creatinine
11. Erythropoietin secretion is inhibited by
1. Hypoxia
2. Androgen
3. Estrogen

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4. Products of RBC destruction
12. Where does the first step in the production of urine occur?
1. Bowman's capsule
2. Glomerulus
3. Vasa recta

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4. Proximal convoluted tubule
13. Afferent cranial nerves for deglutition reflex are
1. V, IX, X
2. V, VII, IX
3. VII, IX, X

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4. VIII, IX, X
14. Agglutinogen is present in
1. Red blood cell
2. Plasma
3. Platelets

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4. White blood cells
15. Three phases of deglutition are
1. Cephalic, gastric and intestinal
2. Cephalic, pharyngeal and esophageal
3. Oral, pharyngeal and intestinal

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4. Oral, pharyngeal and esophageal
16. The main function of albumin is
1. Determination of blood viscosity
2. Determination of osmotic pressure of blood
17. Formation of blood clot

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1. Atrial contraction
2. Bulging of tricuspid valve into right atrium
3. Venous blood flow into the atria
4. Jugular vein constriction
18. The true statement with regard to second heart sound is,

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1. It coincides with the 'R' wave of E.C.G.
2. It is due to closure of semi-lunar valves
3. It is due to closure of AV valves
4. It marks the onset of ventricular systole
19. The fourth heart sound is due to

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1. Closure of the aortic and pulmonary valves
2. Vibrations in the ventricular wall by the inrush of blood
3. Ventricular filling during atrial systole
4. Closure of the mitral and tricuspid valves
20. In a normal heart at rest, the Stroke Volume in ml is,

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1. 30-40
2. 70-80
3. 110-120
4. 120-140

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