Specialized _______ Muscle Fibers Make Up the Heart's Conduction System

Question

Specialized _______ muscle fibers make up the heart's conduction system.
A) aortic
B) pulmonary
C) coronary
D) cardiac

Accepted Answer

Cardiac muscle fibers make up the heart's conduction system, which controls the rhythmic beating of the heart. Aortic, pulmonary, and coronary muscle fibers are not directly involved in the heart's electrical conduction.