Translations:Herz/138/en
Aus Dornheim Anatomy
The bundle branches are also called crus dextrum and sinistrum or tawara branches. The tawara legs divide at the AV bundle. Their main function is to transmit excitation from the His bundle via the nexus into the working myocardium. The left Tawara branch (crus sinistrum) branches off almost perpendicularly from the His bundle and then fans out. This creates the following structures: posterior fascicle, middle fascicle and anterior fascicle. The right tawara limb (crus dextrum) continues anteriorly and enters the myocardium of the ventricular septum. It continues towards the apex of the heart. In the ventricular myocardium, excitation is transmitted via the Purkinje fibres.
