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

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CBME
DR. YSR UNIVERSITY OF HEALTH SCIENCES:AP:VIJAYAWADA-520 008
MBBS DEGREE EXAMINATION ? DECEMBER, 2023
FIRST M.B.B.S. EXAMINATION
PHYSIOLOGY ? PAPER-I (SET-B)
(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) Indicator used to measure plasma volume is
a. D20
b. Insulin
c. Evan's blue dye
d. Radioactive sodium
2) White blood cells are attracted to inflamed tissue areas by
a. Chemotaxis
b. Diffusion
c. Phagocytosis
d. Pinocytosis
3) Red blood cell membrane is maintained by
a. Elastin
b. Spectrin

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c. Laminin
d. Collagen
4) The transport of proteins and polypeptides synthesized in some of nerve cell
to the axonal ending is called as
a. Transcytosis
b. Eucocytosis
c. Retrograde transport
d. Axoplasmic flow
5) The "a" wave in jugular venous pulse tracing is due to
a. Atrial diastole
b. Atrial systole
c. Ventricular diastole
d. Ventricular systole
6) The increase in heart rate following an increase in atrial pressure is called as
a. Bainbridge reflex
b. Volume reflex
c. Cushing's reflex
d. Baroreceptor reflex
7) Hyperkalemia produces
a. Widening of the QRS complexes
b. Fusion of the QRS complexes and the T wave
c. Narrowing of the QRS complexes
d. Increase in QT interval

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8) Iron deficiency anemia is
a. Normocytic normochromic
b. Macrocytic hypochromic
c. Microcytic hypochromic
d. Normocytic hypochromic
9) Carbon dioxide is mainly transported as
a. Dissolved form
b. Bicarbonate form
c. Carbamino hemoglobin
d. Carbamino protein
10) Volume of air that remains in the lungs after a normal expiration
a. Functional residual capacity
b. Vital capacity
c. Residual volume
d. Tidal volume
11) Wind Kessel effect is seen in
a. Aorta
b. Inferior vena cava
c. Capillaries
d. Lymphatics
12) 3rd heart sound is due to

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a. Closure of semilunar valves
b. Arterial systole
c. Atrio ventricular valves closure
d. Rapid filling of ventricle
13) About 90% of the filtered glucose is reabsorbed in the early part of
proximal tubule by
a. SGLT1
b. SGLT2
c. GLUT
d. GLUT1
14) Isothenuria
a. Inability of the kidney to concentrate the urine normally
b. No urine discharge from the body
c. Less urine discharge from the body
d. Difficulty in passing urine
15) The respiratory center which acts as an off switch point is
a. Apneustic center
b. Pneumotaxic center
c. Dorsal group of neurons
d. Ventral group of neurons
16) Ventilation perfusion ratio is
a. Low at the apex and high at the base
b. Low at both apex and base

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c. High at apex and low at base
d. High at both apex and base
17) The rate of BER (Basic Electrical Rhythm) is maximum in
a. Oesophagus
b. Duodenum
c. Ileum
d. Stomach
18) Choleretics cause
a. Contraction of gall bladder
b. Concentration of bile
c. Acidification of bile
d. Increased bile production
19) Normally the angle between the anus and the rectum is approximately
a. 15 degrees
b. 45 degrees
c. 90 degrees
d. 180 degrees
20) Destruction of sensory nerve fibers to the bladder leads to
a. Atonic bladder
b. Neurogenic bladder
c. Hypertonic bladder
d. Automatic bladder

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