Question

What are the contraction and relaxation of the heart muscles termed

termed as?​

Answer 1

Answer:

relaxation :joint diastole

contraction:atrial systole,ventricular systole

Explanation:

Answer 2

Explanation:

$\huge \boxed {\pink{\bold{Answer}}}$

The cardiac cycle refers to the alternating contraction and relaxation of the myocardium in the walls of the heart chambers, coordinated by the conduction system, during one heartbeat. Systole is the contraction phase of the cardiac cycle, and diastole is the relaxation phase.