Mcq Subject: Physiology

Chemoreceptor Trigger Zone is:

A. Pons

B. Lateral hypothalamus

C. Ventral hypothalamus

D. Area postrema

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The main cause of minimal change ds is

A. Increase in pore size

B. Loss of negative charge on membrane

C. Loss of cells

D. Decreased circulation

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A 60-year old patient underwent renal aery doppler which shows narrowing and turbulence in right renal aery. If radius of the aery is reduced by 1/3rd, resistance to blood flow in right kidney would have increased by:

A. 3 times

B. 9 times

C. 16 times

D. 81 times

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Normal adult person’s blood contains:

A. 40% neutrophils

B. 30% lymphocytes

C. 20% eosinophils

D. 10% basophils

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Most impoant from of carbon-dioxide transpo in the blood

A. It is mostly transpoed as carboxy hemoglobin

B. As dissolved CO2

C. As bicarbonates

D. Due to CO2 molecules attached to hemoglobin

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The amount of water absorbed in the intestine in a day is :

A. 5 lit.

B. 1 lit

C. 1 lit

D. 8 lit.

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In the gr’cii circuit, the arc! flow pressure is 100 mm Hg and the outward flow pressure is 10 mm Hg. Each of the parallel circuit has a resistance of 5 mm Hg/mL/min. Calculate the flow across the circuit:

A. 45 mL

B. 90 mL

C. 3.6 mL

D. 135 mL

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Which of the following hormone doesn’t use the adenylyl cyclase-cAMP as a second messenger ?

A. TSH

B. Epinephrine

C. Insulin

D. Glucagon

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True regarding respiratory centre

A. Directly simulated by fall in PaO2

B. Connected with cardiac center

C. Inhibited during swallowing

D. Situated in midbrain

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Baroreceptors stimulation would result in

A. Inhibition of para sympathetic activity

B. Excitation of sympathetic activity

C. Increase in heart rate

D. Decrease in blood pressure

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