ಹೃದಯದ ಲಯಬದ್ಧ ಸಂಕುಂಚನ ಮತ್ತು _ ಹೇನುವರು
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Explanation:
The cardiac cycle is the rhythmic contraction and relaxation of the heart.
Contraction is called cardiac systole and Relaxation is called cardiac diastole. Both contraction and relaxation are together known as the cardiac cycle.
The heart beats 72 times per minute, i.e., that many cardiac cycles are performed per minute.
Hence the rhythmic expansion and contraction of the heart are called Cardiac cycle.
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