Which component directly connects the AV node to the ventricles?

Which component directly connects the AV node to the ventricles?

• A. Purkinje fibers
• B. SA node
• C. AV node
• D. Bundle of His

Answer: (D)

The main idea is the path of electrical conduction from the AV node into the ventricles. After the AV node, the impulse travels through the Bundle of His (the AV bundle), which is the direct bridge to the ventricular conducting system. From there it moves into the right and left bundle branches and then into Purkinje fibers to activate the ventricles. Purkinje fibers are part of the ventricular network downstream, so they don’t connect AV node directly to the ventricles. The SA node is the atrial pacemaker and isn’t part of this AV-to-ventricle connection.

The main idea is the path of electrical conduction from the AV node into the ventricles. After the AV node, the impulse travels through the Bundle of His (the AV bundle), which is the direct bridge to the ventricular conducting system. From there it moves into the right and left bundle branches and then into Purkinje fibers to activate the ventricles. Purkinje fibers are part of the ventricular network downstream, so they don’t connect AV node directly to the ventricles. The SA node is the atrial pacemaker and isn’t part of this AV-to-ventricle connection.