sympathetic nervous system organ sympathetic trunk http://upload.wikimedia.org/wikipedia/commons/2/2d/Gray847.png Wikipedia:Sympathetic_trunk CALOHA:TS-2049 BAMS:S EV:0100374 truncus sympathicus One of a a paired bundle of nerve fibers plus ganglia that run from the base of the skull to the coccyx. BTO:0001834 sympathetic chain FMA:6258 gangliated cord XAO:0000211 SCTID:181099004 sympathetic ganglionic chain UBERON:0000407 AAO:0010791 lateral structure