szívvezet

Szívvezet is a Hungarian term that translates to "heart conduct" or "heart lead" and generally refers to the conduction system of the heart. This system is a network of specialized cardiac muscle cells responsible for initiating and transmitting electrical impulses that cause the heart to contract rhythmically. The primary components of the szívvezet include the sinoatrial (SA) node, the atrioventricular (AV) node, the bundle of His, the bundle branches, and the Purkinje fibers. The SA node, often called the heart's natural pacemaker, generates the initial impulse. This impulse then travels through the atria, causing them to contract. The AV node delays the impulse slightly, allowing the atria to fully empty into the ventricles. From the AV node, the impulse travels down the bundle of His, which splits into the left and right bundle branches, and finally disseminates throughout the ventricles via the Purkinje fibers, leading to ventricular contraction. Disruptions in the szívvezet can lead to various cardiac arrhythmias, affecting the heart's rate or rhythm. Understanding the normal function of the szívvezet is crucial for diagnosing and treating heart conditions.