User:Jtwsaddress42/Quotes/Romer, Alfred Sherwood 1972c

The Functional Welding of the CNS to the ENS - Gaining Control "'It is not unreasonable to speculate on the possibility that: The ancestor of the vertebrates may have had, like many invertebrate types, an essentially independent visceral nerve net; that the development of the autonomic system represents an attempt by the central nervous system at gaining control over visceral activity; and that possibly in the peculiar two-neuron system seen here, the post-ganglionic neurons may be representatives of the original visceral nerve net system, the pre-ganglionics representatives of attempts at domination by the central nervous system.'

Alfred Sherwood Romer (1972)"