The AV node may also be (rarely) referred to as the Aschoff-Tawara node.
An important property that is unique to the AV node is decremental conduction, in which the more frequently the node is stimulated, the slower it conducts. This is the property of the AV node that prevents rapid conduction to the ventricle in cases of rapid atrial rhythms, such as atrial fibrillation or atrial flutter.
The atrioventricular node delays impulses for a while (aprox. 0.16s) before allowing impulses through to the His-Purkinje conduction system, which spreads impulses to the ventricular walls. The reason it is important to delay the cardiac impulse is to ensure that the atria have ejected their blood into the ventricles before the ventricles contract.
The AV node is located between the right atrium and right ventricle. It slows the signals and allows the ventricles to fill before it moves on.
Coxsackievirus and adenovirus receptor (CAR) mediates atrioventricular-node function and connexin 45 localization in the murine heart.(Research article)
Aug 01, 2008; Introduction The coxsackievirus and adenovirus receptor (CAR) was initially identified as a common receptor of the viruses for...