During a cardiac cycle, how many of the four chambers contract at any one time?

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Sanaa Flynn

Biology

22 October, 19:24

During a cardiac cycle, how many of the four chambers contract at any one time?

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Savanah · Answer 1

During a cardiac cycle, TWO of the four chambers contract at any one time. Cardiac cycle refers to the events that occur with every heart beat. The heart is divided into four chamber which are the right and the left ventricles an the left and the right atrium.