First Year MBBS Examination
I MBBS PHYSIOLOGY PAPER II
Time: 3 hours Max Marks: 100
Date: 05-01-2022
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Instructions: INSTRUCTIONS: Attempt allquestions in both sections: (Use separate
answer book for each section)
Section 1
1. Fill in the blanks: (6)
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a. In cross matching before blood transfusion______________ RBC's are mixed with
______________ plasma.
b. In total 12 ECG leads ______________ are
unipolar and ______________ are bipolar
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leads.c. Angiotensin I is converted to angiotensin II by
______________.
d. Largest salivary gland is ______________.
e. Chemoreceptors are ______________.
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f. ______________ are called capacitancevessels.
2. Choose the correct option in the following
multiple-choice questions: (4)
a. Conversion of fibrinogen to fibrin is by; a)
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Prothrombin b) Factor VIII c) Thrombin d)Kalli Krein
b. Baroreceptors regulate the BP in the range
of; a) 50-80 mm Hg b) 70-150 mm Hg c)
100-200 mm Hg d) At all BP Levels
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c. Bohr's effect is; a) Facilitates oxygentransport b) Facilitates CO2 transport c)
Facilitates chloride transport d) None
d. Submucous plexus of GIT; a) Myenteric
plexus b) Auerbach's plexus c) Meissner's
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plexus d) Extrinsic plexus3. 36-year-old female comes to OPD with chief
complaints of severe Epigastric pain (worse at
night between meals). She had lost 10 pounds
in 2 months due to (15) decrease intake
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caused by the feeling of bloating, earlyfullness. She also complains of Nausea and
vomiting. She looked pale and exhausted
when entered the OPD. Based on the above
scenario, answer the following questions:
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a. What is the most likely diagnosis?b. What is the pathophysiology of the disease
diagnosed?
c. What could be the management for the
diagnosed condition?
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4. Write short notes on (Any five): (10)
a. Polycythemia (C1-67)
b. Jugular venous pressure (C1-290)
c. Functions of bile (A.252) (B.491) (C1-243)
d. Gastric emptying
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e. Pace maker potential (A.553) (C1-180)f. SCUBA diving
5. Explain briefly (Any three): (15)
a. Oxygen-Hb dissociation curve (C1-435)
b. Shock
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c. Counter current multiplier system (A.329)(B.403) (C1-549)
d. Intestinal movements (C1-251)
Section 2
1. Hemolytic jaundice (20)
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2. Define blood pressure. What are thecomponents of systemic arterial BP? Explain
the short tor20 regulation of B.P. (10)
a. Explain why (Any five):
b. Stored blood is not suitable for transfusing
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WBC and platelets to the recipient.c. Cyanosis not seen in anemic and histotoxic
hypoxia. (A.763) (B.354) (C1-467)
d. Pack cell volume of venous blood is greater
than that of the arterial blood.d) Sub
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endocardial portion of left ventricle is moreprone to myocardial infarction.
e. In neonates should not be given more than
40% O2 inhalation.
f. Achlorhydria is associated with iron
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deficiency anemia.3. Explain briefly (Any four): (20)
a. Juxta glomerular Apparatus (A.311) (B.380)
(C-510)
b. Effect of hypoxia.
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c. Functions of liver (A.255) (B.488) (C1-242)d. Herring Breuer inflation reflex.
e. Homeostasis.
f. Ventilation perfusion ratio (A.702) (B.319)
(C1-427)
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