7y-46 in word phease = -39
The relaxation phase of the heartbeat is called diastole. During diastole, the heart ventricles relax and fill with blood in preparation for the next contraction.
diastole
Diastole (relaxation) Systole (contraction)
It seems like there may be a typo in your question. Could you provide more context or clarify what you mean by "phease"?
The two phases of the heartbeat are systole (contraction phase) and diastole (relaxation phase).
The human heartbeat has two phases. The systolic phase corresponds with contraction, and the diastolic phase with relaxation.
Heartbeat is also known as pulse or cardiac cycle.
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Diastole is the relaxation phase. Systole is the contraction phase. If you put these phases together you have the Cardiac Cycle...
The period of time between the beginning of one heartbeat and the start of the next is known as the cardiac cycle. It consists of two phases: systole (contraction of the heart muscles) and diastole (relaxation of the heart muscles).