Question

what is cardiac cycle? explain the sequential steps in the cardiac cycle with the help of a flow chart​

Answer 1

Answer:

as the total blood circulation is completed once or twice the cycle involved is called cardiac cycle

Explanation:

in fish we find single blood circulary

in other like mammels have double blood circulation

iam sorry that I know only this if it helps you make this as brillient

Answer 2

human heart starts beating around 21st day during embryonic development.
one contraction and one relaxation of atria and ventricle is called one cardiac cycle.
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the cardiac cycle includes an active phase systole and resting phase diastole of atria and ventricles