part of part of contributes to morphology of Aves Homo sapiens limbic system cerebral hemisphere nucleus accumbens http://upload.wikimedia.org/wikipedia/commons/9/93/Circuit_du_syst%C3%A8me_de_recompense.jpg MAT:0000512 HBA:4290 BTO:0001862 nucleus accumbens septi NCIT:C52733 BM:Ac accumbens nucleus colliculus nuclei caudati UMLS:C0028633 UBERON:0001882 MESH:D009714 DHBA:10339 BAMS:ACC BAMS:Acb BAMS:ACB A region of the brain consisting of a collection of neurons located in the forebrain ventral to the caudate and putamen. (caudoputamen in rodent) and continuous with these structures. There is no distinct boundary between the nucleus accumbens and the caudate/putamen, but in rodents, it can be identified by its lack of traversing fiber bundles in comparison to the dorsal striatum. Its principle neuron is the medium spiny neuron. Together with the neostriatum (caudate nucleus and putamen), the nucleus accumbens forms the striatum. MBA:56 neuronames:277 EMAPA:32789 SCTID:427667007 PBA:10092 a collection of pleomorphic cells in the caudal part of the anterior horn of the lateral ventricle, in the region of the olfactory tubercle, lying between the head of the caudate nucleus and the anterior perforated substance. It is part of the ventral striatum, a composite structure considered part of the basal ganglia[GO][GO:0021768]. FMA:61889 EHDAA2:0004707 MA:0000892 The ventral striatopallidal complex in birds corresponds closely to its counterpart in mammals, with a nucleus accumbes present in the rostral telenceaphalon. Note that in birds, a region previously called the nucleus accumbens is now recognized as the lateral part of the bed nucleus of stria terminalis.[ISBN:0471888893] Wikipedia:Nucleus_accumbens GAID:672 BIRNLEX:727 EFO:0000906 colliculus of caudate nucleus olfactory tubercle ventral striatum telencephalic nucleus basal nucleus of telencephalon