Question

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✨Explain cardiac cycle?

Full explanation

Answer 1

The cardiac cycle is the performance of the human heart from the beginning of one heartbeat to the beginning of the next. It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, followed by a period of robust contraction and pumping of blood, dubbed systole.

Duration: 0.6–1 second (Humans)

Biological system: Circulatory system

Frequency: 60–100 per minute (Humans)

Action: Involuntary

Answer 2

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