title: Phylogenetic evolution of the vegatative nervous system.
mesh_terms: D000717:Anatomy, Comparative; D000818:Animals; D001341:Autonomic Nervous System; D005075:Biological Evolution; D002816:Chordata, Nonvertebrate; D003063:Cnidaria; D004447:Echinodermata; D006801:Humans; D014714:Vertebrates