What is the AV bundle also known as?

What is the AV bundle also known as?

• A. Bundle of His.
• B. Purkinje network.
• C. Moderator band.
• D. Bachmann's bundle.

Answer: (A)

In the heart’s electrical conduction system, the AV bundle is the main conduit that carries impulses from the AV node into the ventricles. It travels through the upper part of the interventricular septum and divides into the right and left bundle branches to coordinate ventricular contraction. This structure is also known as the Bundle of His, named after the physician who described it. This naming reflects its role as the principal pathway linking the atrioventricular node to the ventricular conduction system. Distally, the impulse is carried by the Purkinje network to the ventricular myocardium, ensuring rapid, synchronized contraction. Structures like the moderator band are muscular features in the right atrium and not the primary ventricular conduction route, while Bachmann’s bundle serves as the interatrial conduction pathway.

In the heart’s electrical conduction system, the AV bundle is the main conduit that carries impulses from the AV node into the ventricles. It travels through the upper part of the interventricular septum and divides into the right and left bundle branches to coordinate ventricular contraction. This structure is also known as the Bundle of His, named after the physician who described it. This naming reflects its role as the principal pathway linking the atrioventricular node to the ventricular conduction system.

Distally, the impulse is carried by the Purkinje network to the ventricular myocardium, ensuring rapid, synchronized contraction. Structures like the moderator band are muscular features in the right atrium and not the primary ventricular conduction route, while Bachmann’s bundle serves as the interatrial conduction pathway.