Question

Define Cardiac Cycle.
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Answer 1

Answer:

1. The cardiac cycle is the performance of the human heart from the beginning of one heartbeat to the beginning of the next.

2. It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, called systole.

3. A cardiac cycle is defined as the steps involving the conversion of deoxygenated blood to oxygenated blood in the lungs and pumping it by the heart to the body through the aorta

4. The cardiac cycle is a sequence of alternating contraction and relaxation of the atria and ventricles in order to pump blood throughout the body.

5. Both the atria and the ventricles undergo alternating states of systole and diastole.

Answer 2

Answer:

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