bundle of His

…muscle fibres (known as the bundle of His) running along the muscular partition between the left and right chambers of the heart. He found that these fibres help communicate a single rhythm of contraction to all parts of the heart.

…of conductive fibres called the bundle of His, which induces the contraction of the ventricles. When electrical conduction through the atrioventricular node or bundle of His is interrupted, the condition is called heart block. An artificial pacemaker may be employed temporarily until normal conduction returns or permanently to overcome the…

… to the atrioventricular node and bundle of His (known as the atrioventricular junctional tissue), through the bundle branches and Purkinje fibres (known as the ventricular conduction system), and into the ventricular muscle cells that ultimately generate cardiac output. The conduction system in the atria is poorly defined but clearly designed…