Class 11 Biology Body Fluids and Circulations Cardiac cycle

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What is meant by cardiac cycle?

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Solution

(N/A) The cardiac cycle refers to the sequential events in the heart which are cyclically repeated. It includes the contraction (systole) and relaxation (diastole) of both the atria and the ventricles. The heart beats approximately $72$ times per minute,and each beat represents one complete cardiac cycle,which lasts for about $0.8$ seconds.

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Body Fluids and Circulations

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Cardiac cycle

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