Preferred Label : Atrial part of atrioventricular bundle;
FMA definition : Subdivision of conducting system of heart which enters the central fibrous body and
is continuous with the ventricular part of atriovetnricular bundle.;
Synonyme FMA : Penetrating part of atrioventricular bundle; Fibrous trigone part of atrioventricular bundle;
Subdivision of conducting system of heart which enters the central fibrous body and
is continuous with the ventricular part of atriovetnricular bundle.