Prevertebral ganglia ( GPRS ; Gaskell, 1886 ) : A topographic division of autonomic ganglia (Langley, 1900) associated with the prevertebral plexuses. Galen in the second century saw at least part of them-the celiac ganglion (Walter, 1783)-in macrodissected adult animals except humans; see translations by Duckworth (1962, pp. 217-218), May (1968, pp. 695-696, 711), Smith (1971, p. 179). Gaskell (1886, p. 3) named them for vertebrates based on structure-function criteria.

Prevertebral nerves ( PNE ; Gaskell, 1886 ) : A topographic division of autonomic nerves (Langley, 1898) that macroscopically appear to arise from prevertebral ganglia (Gaskell, 1886) and/or prevertebral plexuses, and typically end in terminal plexuses and/or terminal ganglia (Gaskell, 1886).

Terminal ganglia ( GT ; Gaskell, 1886 ) : A topographic division of autonomic ganglia (Langley, 1900) lying on or in the walls of innervated viscera; named thus by Gaskell (1886, p. 3) for vertebrates based on structure-function criteria.