Question

what is cardiac cycle?????????!​

Answer 1

Answer:

The cardiac cycle is the performance of the human heart from the ending 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, following a period of robust contraction and pumping of blood, dubbed systole. Wikipedia

Duration: 0.6–1 second (Humans)

Biological system: Circulatory system

Action: Involuntary

Frequency: 60–100 per minute (Humans)

Organisms: Animalia

Explanation:

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