Cardiac muscle contracts at a relatively stable rate that is controlled by the pacemaker of the heart.

Name: Cardiac muscle contracts at a relatively stable rate that is controlled by the pacemaker of the heart.
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The pacemaker of the heart, known as the sinoatrial (SA) node, naturally controls the heart rate by generating electrical impulses that prompt cardiac muscle to contract, maintaining a relatively stable and consistent rhythm under normal conditions.

Cardiac Muscle Contracts at a Relatively Stable Rate That Is