A bundle of modified cardiac muscle which conducts impulses from the atrioventricular node to the septum and then divides to connect with the ventricles.
A bundle of modified heart muscle fibers (Purkinje fibers) passing from the atrioventricular (AV) node forward to the septum between the ventricles, where it divides into right and left bundles, one for each ventricle. The fibers transmit contraction waves from the atria, via the AV node, to the ventricles.
A bundle of fibers of the impulse-conducting system of the heart. From its origin in the atrioventricular node, it enters the interventricular septum, where it divides into two branches whose fibers pass to the right and left ventricles respectively, the fibers of each trunk becoming continuous with the Purkinje fibers of the ventricles.