Want this question answered?
Diastole
7y-46 in word phease = -39
diastole
Diastole (relaxation) Systole (contraction)
The human heartbeat has two phases. The systolic phase corresponds with contraction, and the diastolic phase with relaxation.
The heartbeat is caused by the contraction and relaxation of the heart muscle. The heart muscle is a special kind of muscle known as cardiac muscle, which is unique as it is both striated (strong), can work without tiring, and cannot be controlled (the movement of the muscle is automatic).
Heartbeat is also known as pulse or cardiac cycle.
Diastole is the relaxation phase. Systole is the contraction phase. If you put these phases together you have the Cardiac Cycle...
love
love
The relaxation phase of the heart is when there is no compression pressure on the heart.
During sleep, your heartbeat tends to slow down and become more regular. This is because the body enters a state of rest and relaxation, causing a decrease in overall physiological activity. However, certain sleep disorders or medical conditions can affect the heart rate during sleep, leading to variations in heartbeat patterns.