MEDICAL PHYSIOLOGY

Detailed explanation-1: -The atrioventricular (AV) node is the “gatekeeper” between the atria and the ventricles and is located at the AV junction on the right side of the heart (Figure 1A). The primary role of the node is to conduct the action potential from the atria to the ventricles.

Detailed explanation-2: -The AV node plays a gatekeeper role delaying the signal between the atria and the ventricles; this prevents premature contractions of the ventricle that has not filled.

Detailed explanation-3: -The atrioventricular (AV) node is a small structure in the heart, located in the Koch triangle, [1] near the coronary sinus on the interatrial septum.

Detailed explanation-4: -The AV node controls the passage of the heart’s electrical signal from the atria to the ventricles. After an electrical impulse is generated by the sinus node (located at the top of the right atrium), it spreads across both atria, causing these chambers to beat.