What happens during the systolic phase of the cardiac cycle?

During the systolic phase of the cardiac cycle, the heart contracts, leading to the pumping of blood out of the heart chambers. This process primarily occurs in the ventricles, where the blood is ejected through the pulmonary artery to the lungs and through the aorta to the rest of the body. This contraction is necessary for maintaining blood circulation and ensuring that oxygenated blood reaches various tissues and organs in the body.

Understanding the cardiac cycle phases is crucial. In the systolic phase, the heart generates pressure due to muscular contraction, which forces blood into the arterial system. This action is vital for effective hemodynamics and overall cardiovascular function. The awareness of this phase enhances comprehension of heart function and disease processes related to inadequate pumping efficiency, such as congestive heart failure.