The stimuli for contraction of the heart come from within the heart rather than from the nervous system.

Question

Quizplus · Accepted Answer

The heart has its own electrical conduction system (also known as the cardiac conduction system) which coordinates the electrical impulses that cause the heart to contract. This system is regulated by specialized cells called pacemaker cells and does not rely solely on inputs from the nervous system to function. Therefore, the stimuli for contraction of the heart do come from within the heart itself.

The Stimuli for Contraction of the Heart Come from Within