Which structure in the heart is responsible for conducting impulses to the ventricles?

The Bundle of His is responsible for conducting impulses from the atrioventricular (AV) node to the ventricles. After receiving the electrical impulse generated by the sinoatrial (SA) node and transmitted through the atria, the signal reaches the AV node, where it is delayed slightly to allow the ventricles time to fill with blood. From the AV node, the impulse travels into the Bundle of His, which is located in the interventricular septum. The Bundle of His then branches into right and left bundle branches, facilitating the conduction of impulses down into the ventricles through the Purkinje fibers, resulting in ventricular contraction. This structured pathway is crucial for coordinated heart rhythms and effective pumping of blood throughout the body.

Understanding the role of the Bundle of His in the electrical conduction system of the heart highlights its importance in maintaining proper cardiac function.