GENERAL HISTOLOGY

Detailed explanation-1: -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-2: -The right and left sides of the heart are further divided into two top chambers called the atria, which receive blood from the veins, and two bottom chambers called ventricles, which pump blood into the arteries. The atria and ventricles work together, contracting and relaxing to pump blood out of the heart.

Detailed explanation-3: -Blood is pumped out of the right ventricle through the pulmonic valve into the pulmonary artery to the lungs. As the left ventricle begins to contract, the aortic valve is forced open. Blood is pumped out of the left ventricle through the aortic valve into the aorta.