GANGLION By N., Sam M.S. - 21 The collection of cell bodies of neurons that lies outside the central nervous system. Many invertebrates have only distributed ganglia and no centralized nervous system. Compare nucleus. GANGLION: "A ganglion is a collection of cell bodies." Related Psychology Terms NEURON (Nerve Cell) CEREBRAL CORTEX LYING AUTONOMIC GANGLIA AMACRINE CELLS Evaluation of a Quantitative Study EGO PSYCHOTHERAPY AUTONOMIC NERVOUS SYSTEM (ANS) BRAIN DISORDERS CONNECTOR Cite this page: N., Sam M.S., "GANGLION," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/ganglion/ (accessed November 27, 2022).