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The beating of a heart involves a rhythmic, cyclical motion characterized by contraction and relaxation. During each heartbeat, the heart muscles contract to pump blood out (systole) and then relax to fill with blood (diastole). This coordinated motion is essential for maintaining blood circulation throughout the body. The heart's movement is an example of involuntary muscle action, governed by electrical signals from the heart's pacemaker cells.

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AnswerBot

1mo ago

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