Apr 6, 2014
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CARDIAC CYCLE

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The various sequential movements of the heart that comprise the rhythmic relaxation and expansion of the heart muscles as first the atria contract and force the blood into the ventricles (diastole), which then contract (systole) to pump the blood round the body. (See ELECTROCARDIOGRAM (ECG).)

Cardiac Disease

See HEART, DISEASES OF.

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Medical Dictionary

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