Question

The Rythemic expansion of heart is called ______​

Answer 1

Answer:

Hence the rhythmic expansion and contraction of the heart are called Cardiac cycle.

Answer 2

Answer:

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Explanation:

The contraction of heart is called cardiac systole, whereas expansion or relaxation is called cardiac diastole. We can altogether call it a cardiac cycle. Complete answer: The rhythmic contraction and expansion of the heart is a Cardiac cycle.