The His bundle is a collection of heart tissue that plays a crucial role in the electrical conduction system of the heart. It is located in the interventricular septum and transmits electrical impulses from the atrioventricular (AV) node to the Purkinje fibers, which help coordinate the heart's contractions. This bundle is essential for maintaining a regular heartbeat. When the His bundle functions properly, it ensures that the heart's ventricles contract in a synchronized manner, allowing for efficient blood flow throughout the body. Any disruption in this pathway can lead to arrhythmias or other heart conditions.