part of part of hypothalamus anterior hypothalamic region UBERON:0002550 HBA:12902 FMA:62027 BAMS:AHR neuronames:376 UMLS:C0020653 neuronames:2381 MESH:D007032 preoptic division DHBA:266441551 anterior hypothalamic area chiasmal zone AHR HBA:4570 anterior hypothalamic region BIRNLEX:1005 regional part of brain posterior hypothalamic region