Which part of the heart does the AV Bundle of His primarily serve?

The AV Bundle of His, also known simply as the bundle of His, plays a critical role in conducting electrical impulses from the atrioventricular (AV) node to the ventricles of the heart. Its primary function is to ensure synchronous contraction of both the left and right ventricles, which is essential for efficient blood ejection from the heart.

The bundle of His is connected to the conduction system of the heart, and it branches into the right and left bundle branches. These branches further spread throughout the respective ventricles via the Purkinje fibers, facilitating rapid and coordinated contraction. By serving both ventricles, the bundle of His ensures that the electrical signal reaches each chamber almost simultaneously, allowing them to contract in a coordinated manner. This coordination is vital for maintaining proper blood flow and maximizing cardiac output.

Thus, the involvement of the AV Bundle of His with both ventricles allows for an effective contraction of the heart, ensuring that blood is pumped efficiently to the lungs and the rest of the body.