Systole of the Heart

The cardiovascular system is one of the most important systems of the human body. It is responsible for constant blood circulation, providing tissues and organs with the necessary nutrients and oxygen. One of the key components of this system is the heart, which works like a pump, pumping blood through the vessels.

When studying the work of the heart, the term "systole" is often used. Systole is the phase of the cardiac cycle when the heart contracts and pushes blood from the ventricles into the arteries. Systole consists of several stages that occur in the ventricles of the heart.

The first stage of systole is the isovolumetric contraction of the ventricles, during which the valves between the atria and ventricles are closed to prevent backflow of blood. The valves between the ventricles and arteries then open and blood is pushed into the arteries. This process is called ejection. Once the ventricles have fully contracted, the valves between the ventricles and the arteries close to prevent backflow of blood.

Systole is an important phase of the cardiac cycle because it ensures normal blood circulation and allows the body to receive the necessary amount of oxygen and nutrients. Disturbances in the functioning of the heart and systole can lead to serious diseases such as arrhythmia, heart failure and others.

In conclusion, we can say that systole is an important phase of the cardiac cycle, which ensures normal blood circulation in the body. Understanding the heart and systole is important for maintaining health and preventing the development of serious diseases.