szívösszehúzódásra

Szívösszehúzódásra refers to the phenomenon of heart contraction, a vital process for circulating blood throughout the body. This rhythmic contraction, known as systole, is the active phase of the cardiac cycle. During systole, the heart's muscular walls, primarily the ventricles, forcefully contract. This contraction increases the pressure within the heart chambers, pushing blood out into the major arteries. Specifically, the left ventricle contracts to eject oxygenated blood into the aorta, supplying the systemic circulation, while the right ventricle pumps deoxygenated blood into the pulmonary artery, sending it to the lungs for oxygenation.

The coordinated contraction is controlled by electrical impulses generated by the heart's natural pacemaker, the sinoatrial (SA) node. These impulses travel through specialized conduction pathways, ensuring that the atria contract first, followed by the ventricles. The force and duration of szívösszehúzódásra are crucial for maintaining adequate blood flow and delivering oxygen and nutrients to all tissues. Any disruption to this process, such as weakened contractions or abnormal rhythms, can lead to various cardiovascular conditions. Monitoring and understanding the mechanics of heart contraction are fundamental in cardiology for diagnosing and managing heart health.