They've a neurogenic heart, which has rhythmic depolarization that is definitely liable for initiating heartbeats.[25]: 653 Heartbeats originate in nervous tissue; innervated muscle cells result in the heart to agreement when stimulated by nerve impulses. The cardiac ganglion, which includes nine neurons, attaches towards the dorsal wall of the center. https://edwardi271mzj8.wikilentillas.com/user