KALOJI NARAYANA RAO UNIVERSITY OF HEALTH SCIENCES
WARANGAL, TELANGANA? 506 002
MBBS FIRST YEAR SUPPLEMENTARY EXAMINATIONS: NOVEMBER,2025
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PHYSIOLOGYPAPER ? I
Time: 3 Hours
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Max Marks: 100Note: Answer all questions
Give Diagrammatic representation wherever necessary
Multiple Choice Questions:
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10 X 1 = 101
The forced vital capacity is
a)
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The amount of air that normallyb) The amount of air that enters the lung
moves into (or out of) the lung with
but does not participate in gas
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each respiration
exchange.
c)
The amount of air expired after
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d) The largest amount of gas that can bemaximal inspiratory effort
moved into and out of the lungs in 1
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min2
Compliance of lungs is greater in all except
a)
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Than the compliance of lungs andb) In infants than in adults
thorax together
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c)When they are filled with saline
d) In standing than in recumbent
than when they are filled with air
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position3
Changes during Acclimatization at High Altitude include all except
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a)Pulmonary ventilation is increased
b) Increased sensitivity of central
chemoreceptor mechanisms to
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hypoxia and carbon dioxide.
c)
DPG (2, 3-diphosphoglycerate)
d) Metabolic alkalosis
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concentration of red blood cells
increases
4
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Vasomotor ischemia triggers an increase in sympathetic outflow increasing BP andthereby facilitating restoration of cerebral Blood flow. This is called:
a)
Bainbridge reflex
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b) The CNS ischemic pressor responsec)
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Head's paradoxical reflexd) Marey's reflex
5
The normal direction of mean cardiac vector ranges from:
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a)
60 to -30 degree
b) 60 to 120 degree
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c)
110 to 18 degree
d) -30 to 110 degree
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6
The adhesion of platelets to subendothelial collagen is impaired in the absence of:
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a)Von Willebrand factor
b) Plasmin
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c)Heparin
d) Antithrombin III
7
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The release of gastrin from G cells in the antrum of the stomach is inhibited by:a)
Activation of vagal efferent fibres to b) Circulating epinephrine
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the stomach
c)
Blood-borne calcium
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d) Somatostatin8
A proteolytic enzyme present in saliva is:
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a)
Ptyalin
b) Lysozyme
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c)
Kallikrein
d) Lipase
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9Phototherapy given for treating jaundice:
a)
Converts lumirubin to bilirubin
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b) Acts by photoisomerization ofbilirubin to soluble forms
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c)Helpful only in obstructive jaundice d) Any type of the light can be used
10 Which one of the following molecules is used for cell signalling?
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a)CO2
b) O2
c)
No
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d) N2Essay/ Long Answer Questions:
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2 X 15 = 30
11. A woman aged 40 years comes to the physician with complaints of breathlessness, easy
fatigue and headache. On examination, she had pale skin and conjunctiva. Her blood report
shows Hb ? 8 gm/dl, Haematocrit value ? 30%
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(5+3+1+1+5)a) Identify the condition and elaborate the classification of anaemia.
b) How is Iron absorbed by the body and what factors can affect this process
c) Enumerate the causes of Nutritional anaemia
d) What is the suggested treatment
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e) Enumerate blood indices and their normal values.12. An obese elderly lady comes with a complaint of chest pain which appears to spread down
her left arm when she climbs the stairs, it visually disappears when she takes rest for a few
minutes.
(2+4+4+3+2)
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a) Explain why there is chest pain when she climbs the stairs.b) Describe the characteristic features of the coronary circulation
c) How is blood flow to cardiac muscle regulated
d) Describe the innervation of the Heart
e) What ECG changes would you expect to occur during an anginal episode
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Short Answer Questions:
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7 X 6 = 42
13. Explain how cell communicate with another cell by giving suitable examples.
14. Functions of Liver and Add a note on different types of Jaundice.
15. Counter current mechanism in regulation of urine concentration.
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16. Describe types of Hypoxia. Role of oxygen therapy in Hypoxia.17. Pathophysiology of peptic ulcer.
18. Discuss the roles of a physician.
19. Glomerular Filtration Rate.
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Very Short Answer Questions:6 X 3 = 18
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20. Extra cellular fluid volume measurement.21. Heart sounds.
22. Compliance of Lung.
23. Physiological basis of pulmonary oedema.
24. Hormones of Kidney.
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25. What is apoptosis. What is its physiological significance.*****