explain me about cardiac cycle
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The cardiac cycle describes all the activities of the heart through one complete heartbeat—that is, through one contraction and relaxation of both the atria and ventricles. A contraction event (of either the atria or ventricles) is referred to as systole, and a relaxation event is referred to as diastole
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The main purpose of the heart is to pump blood through the body
Explanation:
The complete sequence of events in the heart from the beginning of one beat to the beginning of the following beat is known as cardiac cycle.
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