Ventricular systole

Ventricular systole is one of the most important processes in the work of the heart. As a result of contraction of the ventricular myocardium, blood is released from the heart into the systemic and pulmonary circulation and into the veins of the heart. This allows the heart to pump blood throughout the body and provide it with oxygen and nutrients.

Ventricular systole begins with the relaxation stage, when the ventricles of the heart contract and relax. They then contract again, releasing blood into the aorta and pulmonary artery. During ventricular systole, blood passes through the heart valves, which prevent backflow of blood.

Normally, ventricular systole should occur evenly and without delay. However, if this function is impaired, it can lead to various heart diseases. For example, arrhythmia can occur when the heart valves are malfunctioning or when the conduction system of the heart is not functioning properly.

To prevent heart problems, you need to monitor your health and undergo regular medical examinations. It is also important to eat right, exercise and avoid stress.

The systolic wave of contraction of the left ventricle occurs in the isovolumic contraction phase preceding filling of the left atrium. In this regard, systole is called isometric, while the filling phase is referred to as isovolumic.

During systole, the ventricles contract, which causes blood to be ejected from them into the blood vessels of the small circle (aorta and pulmonary artery). The contraction wave is called a pulse wave. However, between the ventricles and the atrium, phases of diastolic filling of the ventricles with blood occur.