Final answer:
The bundle of His divides into left and right bundle branches that carry an electrical impulse to the ventricles of the heart.
Step-by-step explanation:
The bundle of His is part of the electrical conduction system of the heart. It arises from the atrioventricular (AV) node and divides into two bundle branches, the left and right bundle branches. These branches carry the electrical impulse to the ventricles of the heart.
The left bundle branch supplies the left ventricle, while the right bundle branch supplies the right ventricle. The left bundle branch is larger than the right because the left ventricle is larger. The bundle branches then connect with the Purkinje fibers at the apex of the heart.
Overall, the bundle of His and its branches are responsible for coordinating the contraction of the ventricles, which allows the heart to effectively pump blood throughout the body.