Where is the AV bundle located?

The AV bundle, also known as the bundle of His, is located at the top of the interventricular septum. This placement is crucial because the AV bundle is responsible for transmitting electrical impulses from the atrioventricular node (AV node) to the ventricles, facilitating coordinated contraction and effective pumping of blood from the heart.

Understanding the anatomy of the heart, the AV bundle arises from the AV node, which is situated at the junction of the atria and ventricle. From the AV bundle, the electrical impulses travel down the septum through the right and left bundle branches to the Purkinje fibers, further ensuring that both ventricles contract in unison. Its anatomical position at the top of the septum makes it strategically effective for this function, as it helps in evenly distributing electrical signals throughout the ventricular myocardium.