1124 E346
First Year MBBS Examination
I MBBS Physiology Paper 1
Time: 3 hours
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Max Marks: 100Instructions: 1. Answer to the points. 2.
Use separate answer books for each
section. 3. Draw diagrams wherever
necessary.
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Section 11.Write the following structured long
question. (Any | out of 2) 1x10=10 Marks
(10)
a. What is cardiac output? Describe the
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methods of measurement of cardiacoutput and the factors affecting cardiac
output. (2+4+4=10)
b. Define shock? List the types of shock.
Explain the compensatory mechanism
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of shock. (14+3+6=10)2.Case based scenario, (Any 2 out of 3)
2x6=12 Marks (12)
a. A 10 year old developed purple,
petechial hemorrhagic spots. His
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platelet count is 90,000/cu.mm 1. Whatis the probable diagnosis? (1) 2. How
can you confirm it by laboratory test?
(2) 3. Describe the steps of formation of
platelet plug. (3)
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b. A 50 year old patient with sudden attackof unconsciousness. On examination he
had pulse rate of 35/min. His ECG
revealed P wave and ORS complex
occurring independently of each other.
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1. What is likely diagnosis?. (2) 2.Describe the various conduction
disorders. (4)
c. A 40 year old male gives H/O
appreciable amount of glucose in urine.
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However, his fasting and post prandial(PP) blood sugar were normal. 1. What
is likely diagnosis? Q) 2. What is renal
threshold? (1) 3. What is splay and what
are its causes? (4)
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3.Write short notes on: (Any 3 out of 4)3x6=18 Marks (18)
a. Acquired immunity
b. Gibbs-Donnan equilibrium
c. Apoptosis vp
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d. Pernicious anaemia [P.T.O.4. Answer in only 2-3 sentences. (Any 5
out of 6) (10)
a. Write the following structured long
question. (Any 1 out of 2)
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b. Law of Laplacec. Cardiac index
d. Why haemophilia deesn?TMt affect
females?
e. Why elevated K* concentration cause
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severe muscle contraction?f. Why hypoproteinemia is associated with
oedema?
Section 2
5.Why exercise lowers the blood sugar
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level? (10)a. Define hypoxia. List types uf hypoxia
and describe high altitude hypoxia.
b. What is G-protein? What is the primary
role of G-protein in the cell? Describe
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the mechanism of action of G-protein.6.Write short notes on: (Any 2 out of3)
(12)
a. Homeostasis
b. Feedback loop
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c. Health risk of sedentary lifestyle7.Write short notes on: (Any 3 out of 4)
(18)
a. Renal clearance
b. Micturition reflex
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c. Role of physician as communicatord. How empathy can be shown to the
patient?
8. Answer in only 2-3 sentences. (Any 5
out of 6) (10)
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a. Dyspneic index
b. Hyperbaric oxygen therapy
c. Water intoxication
d. Filtration fraction
e. Laron dwarfism
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f. BMI (body mass index)