MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The normal period in the heart cycle during which the muscle fibers lengthen, the heart dilates, and the cavities fill with blood, roughly the period of relaxation is called:
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systole
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pulse pressure
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diastose
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diastole
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Explanation:
Detailed explanation-1: -The heartbeat is caused by the heart muscles relaxing and contracting. During this cycle, the period of relaxation is called diastole and the period of contraction is called systole.
Detailed explanation-2: -The period of contraction that the heart undergoes while it pumps blood into circulation is called systole. The period of relaxation that occurs as the chambers fill with blood is called diastole.
Detailed explanation-3: -The relaxation and dilation of the heart chambers between contractions, during which they fill with blood.
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