The heart of an elephant is myogenic, as all the vertebrates have myogenic hearts.
Myogenic contraction refers to a contraction initiated by the myocyte cell itself instead of an outside occurrence or stimulus, such as nerve innervation. For most invertebrates, heart contraction is initiated and regulated predominantly by external nerves; thus insect hearts are neurogenic. In contrast, vertebrates, tunicates, and some molluses have myogenic hearts. The heartbeat is initiated and regulated by specialized groups of muscle cells.

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