What is ventricular ejection?

Ventricular ejection is the phase of the cardiac cycle during which the ventricles contract and pump blood out of the heart. Specifically, the right ventricle sends deoxygenated blood to the lungs through the pulmonary artery, while the left ventricle pumps oxygenated blood to the rest of the body via the aorta. This process is crucial for maintaining circulation and ensuring that tissues receive the oxygen and nutrients they need. The ejection fraction, a key measure of heart function, indicates the percentage of blood ejected relative to the total volume of blood in the ventricle at the end of diastole.