Cell body ( Deiters, 1865 ) : When referring to neurons (Waldeyer, 1891), it is the trophic center exclusive of neuron extensions-axon (Kölliker,1896), dendrites (His, 1889), and amacrine extensions-with a cell nucleus (Brown, 1833) and perikaryon (Foster & Sherrington, 1897). For neurons the term cell body was used by Deiters (1865, "Körper der Zelle" in the original German; see Van der Loos, 1967, p. 42). Also see Standring (2008, p. 41).