Which phase of the cardiac cycle does Ventricular Systole correspond with?

Ventricular Systole refers to the phase of the cardiac cycle when the ventricles contract, pumping blood out of the heart. This contraction occurs after the ventricles have filled with blood during the preceding diastolic phase. During Ventricular Systole, pressure within the ventricles rises, leading to the closure of the atrioventricular valves and the opening of the semilunar valves, which allows blood to flow into the aorta and pulmonary artery.

Understanding this phase is crucial, as it directly relates to various clinical scenarios and imaging techniques, such as echocardiography and CT, where the evaluation of cardiac function during the cycle is important. Ventricular Systole is characterized by contraction and ejection of blood, contrasting with other phases, such as Diastole when the heart is in a relaxed state. This distinction allows healthcare professionals to monitor cardiac health and efficiency accurately.