THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -This is called intrinsic conduction. Electrical signals in the heart are sent via conducting cells. The bundle of His comprises nerve fibers that stretch from the atrioventricular node to the Purkinje fibers. Bundle of His can also be called the atrioventricular bundle.

Detailed explanation-2: -The atrioventricular node (also known as the AV node) is a collection of specialized cardiac muscle cells, which are bundled together to form a node within the wall of the interatrial septum.