Final answer:
The bundle of His, or atrioventricular bundle, is located in the heart and receives stimulus from the AV node. Its main function is to ensure coordinated contraction of the ventricles.
Step-by-step explanation:
The bundle of His, also known as the atrioventricular bundle, is located in the heart. It is a group of specialized myocardial conductile cells that transmit electrical impulses from the AV node through the interventricular septum. The bundle of His divides into the left and right bundle branches which supply the left and right ventricles respectively.
The bundle of His receives stimulus from the AV node, which is responsible for initiating the electrical signals that coordinate the contraction of the heart.
The main function of the bundle of His is to ensure coordinated and synchronized contraction of the ventricles, allowing for efficient pumping of blood.