ANATOMY

Detailed explanation-1: -Diastole and systole 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.

Detailed explanation-2: -There are two phases to your heart’s pumping cycle: systole-this is when your heart contracts, pushing blood out of the chambers. diastole-this is the period between contractions when the muscle of your heart (myocardium) relaxes and the chambers fill with blood.

Detailed explanation-3: -systole, period of contraction of the ventricles of the heart that occurs between the first and second heart sounds of the cardiac cycle (the sequence of events in a single heart beat). Systole causes the ejection of blood into the aorta and pulmonary trunk.

Detailed explanation-4: -The cardiac cycle involves four major stages of activity: 1) “Isovolumic relaxation", 2) Inflow, 3) “Isovolumic contraction", 4) “Ejection".

Detailed explanation-5: -Systole is the contraction of the left and right ventricles, resulting in blood flow to the body and lungs, respectively. Diastole includes the contraction of the atria and the filling of the ventricles. Thus, in the systolic phase of cardiac cycle, blood leaves the heart.