What is the collective term for the AV node and the surrounding tissue, including the bundle of His?

Question

Quizplus · Accepted Answer

The AV node and surrounding tissue, including the bundle of His, are collectively referred to as the atrioventricular (AV) junction. The other options listed are incorrect: 
A) Bachmann's bundle refers to a group of specialized muscle fibers in the left atrium 
B) The Purkinje network refers to the specialized conduction system fibers located in the myocardium of both ventricles 
D) The SA complex does not refer to the AV node or surrounding tissue, but rather to the sinoatrial (SA) node and the interconnecting pathways in the right atrium.

What Is the Collective Term for the AV Node and the Surrounding