They have a neurogenic heart, which has rhythmic depolarization which is liable for initiating heartbeats.[24]: 653 Heartbeats originate in anxious tissue; innervated muscle cells cause the center to contract when stimulated by nerve impulses. The cardiac ganglion, which includes 9 neurons, attaches for the dorsal wall of the heart. The https://elizabethu009nfy9.blogcudinti.com/profile