Question

what is atrial systole​

Answer 1

Atrial systole refers to the phase of the cardiac cycle. During atrial systole the left and right atrial contract at the same time and push blood into the left and right ventricle.

Answer 2

Answer:

it refers to the face of a cardiac cycle. during it the left and right

atria contract at the same time and push blood into the left and right ventricle ,respectively