The group of modified cardiac muscle cells that delays action potentials between the atria and the atrioventricular bundle is known as AV node.
The interatrial septum of the heart's Koch triangle has a small structure called the atrioventricular (AV) node that is situated close to the coronary sinus. The right coronary artery supplies the atrioventricular node in a right-dominant heart. The atrioventricular node (AVN) is a complex heart structure that serves a number of purposes.
The AV node regulates the flow of the heart's electrical signal from the atria to the ventricles. It serves as an electrical gatekeeper between the atria and ventricles and introduces a delay between atrial and ventricular excitation, allowing for efficient ventricular filling. Both of the atria beat as a result of an electrical impulse produced by the sinus node, which is found at the top of the right atrium.
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