Question

what is systole and distole​

Answer 1

Systole and diastole are two phases of the cardiac cycle. They occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body. Systole occurs when the heart contracts to pump blood out, and diastole occurs when the heart relaxes after contraction.

Answer 2

Answer:

Systole, period of contraction of the ventricles of the heart that occurs between the first and second heart sounds of the cardiac cycle.

Diastole is the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood.

pls mark as brainliest