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Question

In humans, blood passes from the ventricles to pulmonary artery and aorta due to



Your Answer
A

Increase in atrial pressure

Correct Answer
B

Increase in ventricular pressure

Your Answer
C

Decrease in ventricular pressure

Your Answer
D

Suction pull


Solution

The correct option is B

Increase in ventricular pressure


Increase in the pressure within ventricles during systole gets passed on to the walls of the great vessels (aorta & pulmonary artery). Blood pressure is just the pressure exerted by the contraction of heart on the walls of arteries. Blood can flow through the vessels and maintain unidirectionality due to this action.

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