Download BFUHS MBBS MBN104 Physiology B Nov 2023 mcq Question Paper

Total No. = 03 pages
Q.P. Code: MBN104
M.B.B.S. 1st Prof.

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(New Scheme w.e.f. 2019 admission onwards)
BF/2023/06
Physiology ? B

M.M. : 100

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Time : 3 Hours(First30 Min. for MCQs)
Note: 1.
Use OMR Sheet to answer Multiple Choice Questions(MCQs).
2.
Attempt all questions. Illustrate your answers with suitable diagrams

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3.
NO SUPPLEMENTARY SHEET SHALL BE ALLOWED/PROVIDED
4.
The student must write Q.P. Code in the space provided on OMR Sheet and the Title
page of the Answer Book.

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Q.1
MCQs (Attempt on OMR sheet)
[1x20]
Q1
Multiple choice questions

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1
Maximum contraction of gall bladder is seen with
a.
CCK
b.

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Secretin
c.
Gastrin
d.
Enterogastrone

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2.
The PR interval is
a.
The beginning of the P wave and the beginning of R wave
b.

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The beginning of the P wave and the beginning of QRS complex
c.
The end of the P wave and the beginning of QRS complex
d.
The end of the P wave and the end of QRS complex

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3.
Which of the following is NOT a hypovolemic shock?
a.
Hemorrhage
b.

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Burn
c.
Diarrhea
d.
Heart failure

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4.
The most common cause of anemia in developing country is
a.
Malignancy
b.

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Infection
c.
Nutritional deficiency
d.
Drugs causing bone marrow suppression

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5.
Which is the first and immediate event in hemostasis
a.
Platelet adhesion
b.

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Platelet aggregation
c.
V
asoconstriction
d.

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Platelet activation
6.
Which of the following intestinal movement is for mixing and grinding of intestinal
content
a.

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Peristalsis
b.
Segmentation
c.
Villus contraction

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d.
Migrating myoelectric complex
7.
Blood pressure is defined as the product of
a.

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Systolic pressure x pulse rate
b. Diastolic pressure x pulse rate
c.
Pulse pressure x pulse rate
d. Cardiac output x peripheral resistance

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8.
Neutrophil count is high
a.
During acute bacterial infection
b.

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Typhoid fever
c.
In pernicious anemia
d.
Drugs depressing bone marrow

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9.

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Stimulation of parasympathetic nerve to salivary gland causes
a.
Increased secretion rich in organic constituents
b.
Decreased secretion

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c.
Increased watery secretion rich in enzyme and mucin
d.
Secretion is unaffected
10.

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Baroreceptor stimulation produces
a.
Decreased heart rate and blood pressure
b.
Increased heart rate and blood pressure

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c.
Increased cardiac contractility
d.
Baroreceptor adaptation
11.

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Exercise causes which of the following?
a.
Increased blood flow to the muscles after half minute
b.
Increase in cerebral blood flow due to increase in systolic blood pressure

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c.
Increased body temperature
d.
Decreased O2 consumption
12.

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GFR is precisely measured by
a.
Inulin
b.
Creatinine

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c.
Hippuric acid
d.
PAH
13.

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Which of the following is NOT absorbed in proximal convoluted tubule
a.
Na+
b.
Phosphate

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c.
HCO -
3
d.
H+

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14.
Countercurrent mechanism in the kidney is responsible for
a.
Maintenances of blood flow
b.

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Absorption of Glucose
c.
Osmotic gradient of medulla
d.
Secretion of uric acid

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15.
The first physiological response to high environmental temperature is
a.
Sweating
b.

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Vasodilation
c.
Decreased heat production
d.
Decreased non-shivering thermogenesis

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16.
Which of the following does not stimulate peripheral chemoreceptors?
a.
Hypoxic hypoxia
b.

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Stagnant hypoxia
c.
Anemic hypoxia
d.
Histotoxic hypoxia

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17.
Timed vital capacity (FEV1) is less than 70% in
a.
Bronchial asthma
b.

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Bronchitis
c.
Pulmonary fibrosis
d.
Lung collapse

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18.
Which of
the following is seen in high altitude climates?
a.
Decreased density of systemic capillaries

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b.
Hypertension
c.
Bradycardia
d.

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Increase in pulmonary ventilation
19.
Activation of sympathetic fibers caused all EXCEPT
a.
Increased heart rate

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b.
Increased conduction velocity
c.
Decreased coronary blood flow
d.

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Increased myocardial contractility
20.
Carbon monoxide poisoning is a type of
a.
Anemic hypoxia

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b.
Histotoxic hypoxia
c.
Hypoxic hypoxia
d.

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Stagnant hypoxia
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Q.2.
With the help of a neat diagram explain the volume and pressure changes in the cardiac cycle.
Enumerate the heart sounds. Explain the mechanism of the third heart sound.
[8+2+2]
Q.3.

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Write short notes on:-
[5x4]
a.
Explain mechanism of tubulo-glomerular feedback in kidney
b.

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Discuss mechanism of gastric acid secretion
c.
Explain Bohr's effect in oxy-heamoglobin dissociation curve in detail
d.
Discuss role of T helper cells in immunity

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Q.4.
Explain why:-
[3x5]
a.
Inulin is used to calculate renal clearance

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b.
ORS is the best treatment for dehydration
c.
Vitamin K is administrated to newborns
d.

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A patient in circulatory shock feels thirsty
e.
Normal intra-pleural pressure is negative
Q.5.
Short notes on(applied aspect):-

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[6x3]
a.
Define hypoxia. Discuss hypoxic hypoxia in detail.
b.
Discuss dialysis in detail

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c.
Define and classify anemias. Discuss laboratory findings of iron deficiency anemia in
detail.
Q.6.
Short notes on:-

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[5x3]
a.
Discuss rights and responsibilities of a patient.
b.
Discuss nitrogen narcosis

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c.
Explain peristalsis in detail
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