A ganglion is a group of neuron cell bodies in the peripheral nervous system. In the somatic nervous system this includes dorsal root ganglia and trigeminal ...GanglionFromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchClustersofneuronsintheperipheralnervoussystemThisarticleisaboutneuronclusters.Forotheruses,seeGanglion(disambiguation)."Ganglia"redirectshere.Forotheruses,seeGanglia(disambiguation).GanglionMicrographofaganglion.H&Estain.DetailsSystemNervoussystemIdentifiersLatinganglionMeSHD005724TA98A14.2.00.002FMA5884Anatomicalterminology[editonWikidata]Adorsalrootganglion(DRG)fromachickenembryo(aroundstageofday7)afterincubationovernightinNGFgrowthmediumstainedwithanti-neurofilamentantibody.Notetheaxonsgrowingoutoftheganglion.Aganglionisagroupofneuroncellbodiesintheperipheralnervoussystem.Inthesomaticnervoussystemthisincludesdorsalrootgangliaandtrigeminalgangliaamongafewothers.Intheautonomicnervoussystemtherearebothsympatheticandparasympatheticgangliawhichcontainthecellbodiesofpostganglionicsympatheticandparasympatheticneuronsrespectively.Apseudoganglionlookslikeaganglion,butonlyhasnervefibersandhasnonervecellbodies.Contents1Structure1.1Basalganglia1.2Pseudoganglion2Seealso3References4ExternallinksStructure[edit]Gangliaareprimarilymadeupofsomataanddendriticstructureswhicharebundledorconnected.Gangliaofteninterconnectwithothergangliatoformacomplexsystemofgangliaknownasaplexus.Gangliaproviderelaypointsandintermediaryconnectionsbetweendifferentneurologicalstructuresinthebody,suchastheperipheralandcentralnervoussystems.Amongvertebratestherearethreemajorgroupsofganglia:Dorsalrootganglia(alsoknownasthespinalganglia)containthecellbodiesofsensory(afferent)neurons.Cranialnervegangliacontainthecellbodiesofcranialnerveneurons.Autonomicgangliacontainthecellbodiesofautonomicnerves.Intheautonomicnervoussystem,fibersfromthecentralnervoussystemtothegangliaareknownaspreganglionicfibers,whilethosefromthegangliatotheeffectororganarecalledpostganglionicfibers.Basalganglia[ed