KING CRAB - AN OVERVIEW

They've a neurogenic coronary heart, which has rhythmic depolarization that is accountable for initiating heartbeats.[24]: 653  Heartbeats originate in anxious tissue; innervated muscle cells induce the heart to deal when stimulated by nerve impulses. The cardiac ganglion, which is made of 9 neurons, attaches on the dorsal wall of the heart. Th