Medical MCQs

Page No. 1

Cardiac cycle duration in man is_______________?


a0.4 seconds

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b 0.8 seconds

✓


c 1.2 seconds

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d1.6 seconds

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View Answer 0.8 seconds

Smoking causes_____________?


aCiliary motility

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bCellular hyperplasia

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cMucous secretion

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d All of the above

✓


View Answer All of the above

Oxygen affinity is increased by all except_________________?


aAlkalosis

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b Hypoxia

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cIncreased HbF

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dHypothermia

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View Answer Hypoxia

Increase in partial pressure of CO2 leading to release of oxygen to the tissues is________________?


aHaldane effect

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b Bohr effect

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c Breur effect

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d Hamburger effect

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View Answer Bohr effect

Carotid body function in an organ work as_______________?


a Differential pressure of oxygen in arterial blood

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bDifferential pressure of oxygen in venous blood

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cDifferential pressure of oxygen in in tissue fluids

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dDifferential pressure of oxygen in in hemoglobin synthesis

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An important non- respiratory function of lungs is_____________?


aAnion balance

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b Sodium balance

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cPotassium balance

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dCa+2 balance

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View Answer Sodium balance

Surfactant is secreted by_____________?


aPnemocyte I

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b Pnemocyte II

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cGoblet cells

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dPulmonary vessels

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View Answer Pnemocyte II

Muscle of expiration____________?


aDiaphragm

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b Internal intercostals

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c External intercostals

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dRcti Abdominis

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In which of the following diseases would you expect to find an increase in thickness of the respiratory membrane ?


a Emphysema

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bAsthma

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cPulmonary artery thrombosis

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dSkeletal abnormalities of the chest

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View Answer Emphysema

Arterial PO2 is reduced in_____________?


aAnemia

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bKCN poisoning

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c Pulmonary hypoventilation

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dCO poisoning

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