Components of the Cardiac Conduction System

 

Bundle of His

The atrioventricular bundle (bundle of His) is a continuation of the specialised tissue of the AV node, and serves to transmit the electrical impulse from the AV node to the Purkinje fibres of the ventricles.

It descends down the membranous part of the interventricular septum, before dividing into two main bundles:

• Right bundle branch – conducts the impulse to the Purkinje fibres of the right ventricle
• Left bundle branch – conducts the impulse to the Purkinje fibres of the left ventricle.