The heart continues beating normally even whe | vedclass

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(A) The heart is myogenic,meaning the heartbeat originates from specialized cardiac muscle cells rather than from the central nervous system.Even when

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Myogenic

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(A) The heart is myogenic,meaning the heartbeat originates from specialized cardiac muscle cells rather than from the central nervous system.Even when the nerve supply to the heart is completely severed or obliterated,the heart continues to beat because the sinoatrial node ($SA$ node),which acts as the natural pacemaker,is composed of modified cardiac muscle fibers that possess the inherent property of self-excitation.Therefore,the heart's rhythm is maintained by its own internal conduction system.

The heart continues beating normally even when its nervous supply is completely obliterated because it is

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