First Year MBBS Examination
I MBBS PHYSIOLOGY PAPER II
Time: 3 hours Max Marks: 100
Date: 23-01-2023
--- Content provided by FirstRanker.com ---
Instructions: INSTRUCTIONS: Attempt allquestions in both sections: (Use separate
answer book for each section)
Section 1
1. Fill in the blanks: (6)
--- Content provided by FirstRanker.com ---
a. The haematocrit of venous blood is greaterthan arterial blood because of a
phenomenon called _________________
b. The WBCs that increase in allergic
conditions are _________________
--- Content provided by FirstRanker.com ---
c. The first plasma protein to appear in urinein renal diseases is _________________
d. The hormone involved in the initiation of
the migrating motor complexes is
_________________ syndrome.
--- Content provided by FirstRanker.com ---
e. Cerebral ischemia in third degree heartblock may lead to _________________
f. The decrease in the affinity of 02 for
haemoglobin when the pH of blood falls is
known as. _________________
--- Content provided by FirstRanker.com ---
2. Answer the following MCQ: (4)a. All are associated with hemolysis
EXCEPT: a) G6PD deficiency b) Sickle cell
anemia c) Physiological jaundice d)
Pernicious anemia
--- Content provided by FirstRanker.com ---
b. Reabsorption of Na* in kidney: a) Takesplace in association with CI- & HCO3 b)
Occurs only in the proximal tubules c) is
under control of parathormone hormone d)
Is a passive process
--- Content provided by FirstRanker.com ---
c. ECG wave corresponding to ventricularrepolarization is: a) P wave b) QRS
complex c) T wave d) U wave
d. Air remaining in lungs after tidal expiration
is called: a) Functional residual capacity b)
--- Content provided by FirstRanker.com ---
Residual volume c) Expiratory reservevolume d) Expiratory capacity
3. Person A takes deep breaths at slow
respiratory rate. (Tidal volume 600 ml
&respiratory rate 10/min). Another person B
--- Content provided by FirstRanker.com ---
shallow breaths at high respiratory (15)yrate15pulmonary ventilation and alveolar
ventilation. Who, do you think is having
better(TV: 300ml & RR 20/min). Considering
their dead space air as 150 ml, calculate their
--- Content provided by FirstRanker.com ---
alveolar ventilation and why? Add a note onperiodic breathing.
4. Write short note on (Any Five). (10)
a. Secretion of HCI by stomach.
b. Antigen presenting cells.
--- Content provided by FirstRanker.com ---
c. Surfactant in lungs. (C1-408)d. Reabsorption of f glucose in kidneys.
e. ECG in myocardial infarction
f. Spherocytosis.
5. Explain briefly (Any Three). (15)
--- Content provided by FirstRanker.com ---
a. Gastrointestinal hormones.b. Regulation of ECF volume by kidney.
c. Nutritional anemias.
d. Cardiac cycle (C1-287)
Section 2
--- Content provided by FirstRanker.com ---
6. Describe with the help of diagrams, thecountercurrent mechanism for generation
hyperosmolar medulla in kidney. What is the
significance of the 'U' shape, long size (20)
and low blood supply is vasa recta? State the
--- Content provided by FirstRanker.com ---
role of urea in concentrating urine. 207. What will happen and why (Any Five). (10)
a. To GFR if a person takes protein rich diet.
b. To cardiac output during exercise. (A.599)
(8.215)
--- Content provided by FirstRanker.com ---
c. To rate of respiration at high altitudes.d. To RBC count in patients of chronic renal
failure.
e. To PR interval in first degree heart block.
f. To reticulocyte count if a person is treated
--- Content provided by FirstRanker.com ---
for anemia.8. Explain briefly (Any Four). (20)
a. Fetal circulation.
b. Oxygen hemoglobin dissociation curve.
(C1-435)
--- Content provided by FirstRanker.com ---
c. Bicarbonate reabsorption in PCT.d. Physiological jaundice.
e. Role of baroreceptors in regulating blood
pressure.
***
--- Content provided by FirstRanker.com ---