The heart initiates its own action potentials without any external influence.

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The heart has its own built-in electrical system that initiates and regulates its own action potentials, without requiring any input or influence from external sources such as the nervous system. This system includes specialized cells known as pacemaker cells, which generate rhythmic electrical impulses that cause the heart to contract and relax in a coordinated manner.

The Heart Initiates Its Own Action Potentials Without Any External