NODE, AV


Meaning of NODE, AV in English

Atrioventricular node. Specialized heart tissue which acts as an electrical relay station between the upper chambers of the heart (atria) and the lower chambers of the heart (ventricles). Electrical signals from the sinoatrial (SA) node and the atria must pass through the AV node to reach the ventricles.

English dictionary of medicine.      Английский словарь медицины.