________ is to contraction as ________ is to relaxation.
A)Systole; diastole
B)Diastole; systole
C)Filling; relaxing

Name: ________ is to contraction as ________ is to relaxation. A)Systole; diastole B)Diastole; systole C)Filling; relaxing
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Question

Quizplus · Accepted Answer

Systole refers to the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries. Diastole is the phase when the heart muscle relaxes and allows the chambers to fill with blood.

________ Is to Contraction as ________ Is to Relaxation

Is to Contraction as Is to Relaxation