Where does the impulse go after the AV node?

After the AV node, the electrical impulse travels to the right and left bundle branches. This is a crucial step in the conduction system of the heart, responsible for coordinating the contraction of both ventricles.

The bundle branches are part of the conduction pathway that extends from the AV node down through the interventricular septum, allowing the impulse to travel quickly towards the apex of the heart. This rapid conduction ensures that the ventricles contract simultaneously and effectively pump blood out of the heart to the lungs and body.

Once the impulse reaches the bundle branches, it then continues to the Purkinje fibers, which further distribute the electrical signal across the ventricular myocardium. This process is essential to maintain a synchronized heartbeat, demonstrating the importance of the structure and sequence of the heart's conduction system.