Question

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Answer 1

Explanation:

The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next. It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, followed by a period of robust contraction and pumping of blood, dubbed systole

Answer 2

Answer:

Hi mate here is ur answer

The cardiac cycle is the sequence of events that occur when the heart beats. The cycle has two main phases: diastole, when the heart ventricles are relaxed; and systole, when the ventricles contract. Onecardiac cycle is defined as the contraction of the two atria followed by contraction of the two ventricles.

Explanation:

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