APPLIED RADIOLOGICAL ANATOMY

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 node delays the SA node’s electrical signal. It delays the signal by a consistent amount of time (a fraction of a second) each time. The delay ensures that your atria are empty of blood before the contraction stops. The atria are the heart’s upper chambers.

Detailed explanation-4: -The atrioventricular node (AVN) is a complex structure that performs a variety of functions in the heart. The AVN is primarily an electrical gatekeeper between the atria and ventricles and introduces a delay between atrial and ventricular excitation, allowing for efficient ventricular filling.