The two types of cardiac muscle cells involved in a normal heartbeat include specialized cells of the conducting system and ________ cells.

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Quizplus · Accepted Answer

The specialized cells of the conducting system are responsible for initiating and coordinating the contraction of the heart. They include the SA node, AV node, bundle of His, and Purkinje fibers. The contractile cells, on the other hand, make up the bulk of the heart muscle and are responsible for actually contracting and pumping blood.

The Two Types of Cardiac Muscle Cells Involved in a Normal