Bundle of His.
Work Step by Step
Atrioventricular bundle - is ashort bundle of modified myocardial fibres which begins from the anteroinferior end of the AV node. - runs in the posterior margin of the membranous part of the interventricular septum. - divides into 2 branches : right bundle branch ( RBB ) & left bundle branch ( LBB ). - also called : "bundle of His."