The forceful contraction of the cardiac chambers is ___________, and the relaxed phase of the cycle is ___________.

Name: The forceful contraction of the cardiac chambers is ___________, and the relaxed phase of the cycle is ___________.
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Systole refers to the phase of the cardiac cycle during which the heart muscle contracts and pumps blood from the chambers into the arteries. Diastole is the phase when the heart muscle relaxes and allows the chambers to fill with blood.

The Forceful Contraction of the Cardiac Chambers Is ___________, and the Relaxed