What component of the cardiac conduction system distributes electrical signals through the papillary muscles directly?
A) AV nodes
B) AV bundle
C) bundle of His
D) Purkinje fibers
E) SA node

Question

Quizplus · Accepted Answer

The Purkinje fibers are a network of specialized fibers that distribute electrical signals directly to the papillary muscles, which are responsible for the contraction of the atrioventricular valves during ventricular contraction. The other components of the cardiac conduction system (SA node, AV nodes, AV bundle, and bundle of His) are responsible for initiating and coordinating the electrical signals that regulate the heart rhythm, but they do not directly distribute signals to the papillary muscles.

What Component of the Cardiac Conduction System Distributes Electrical Signals