Atrioventricular Node

The Atrioventricular Node is part of the conduction system of the heart. It is located in the interatrial septum. The impulse enters it from the sinoatrial node through the cardiomyocytes of the atria, and then is transmitted through the atrioventricular bundle to the ventricular myocardium. Thus, the Atrioventricular node plays an important role in conducting impulses from the atria to the ventricles, ensuring coordinated contraction of different parts of the heart.



The Atrioventricular node (AVN) is a part of the conduction system of the heart, located in the interatrial septum and responsible for conducting impulses between the atria and ventricles. It is one of three nodes that regulate heart rhythm and is also involved in the formation of the cardiac cycle.

The impulse generated in the sinoatrial node travels through the atrial cardiomyocytes and reaches the AVN. The AVN slows the heart rate, allowing it to conduct impulses through slower fibers located in the atria. The impulse is then transmitted through the AVN bundle, which connects the atria and ventricles.

The AVN plays an important role in regulating heart rate and ensures synchronization between atrial and ventricular rhythm. AVN dysfunction can lead to arrhythmia or cardiac arrest. Therefore, it is important to monitor the health of this node and consult a doctor if symptoms associated with its operation appear.



An important mechanism that regulates heart rhythm is the Atrioventicular node (AV node). It is located in the muscle layer between the atria, in their upper part. Like any other node of the cardiac organ, the AV node has several functions in addition to performing a rhythmic function.

The Atriventricular node belongs to the wiring system of the heart and is located in the area of ​​the interatrial septum. This is the last section of the wire between the cardiac atrium and the ventricle. The AV node transmits impulses to the ventricles.

The impulse received in this part of the cardiac organ from the sinoatrial fiber transmits the impulse, passing through the AV node to the cells of the next section, the ventricles. Next comes the depolarization of all myocytes, which reaches the sinus node, causing an electrical impulse. Thus, the AV fiber distributes the potential to various parts of the heart muscle.

An important feature of this wire section is its ability to reduce the frequency of contractions. This occurs due to the ability of the AV node to carry, usually a slower pulse. Delaying these electrical signals helps slow the heart. Such a mechanism is needed