part of part of contributes to morphology of diencephalon dorsal plus ventral thalamus ventral thalamus Anterior part of the diencephalon that lies between the dorsal thalamus, hypothalamus, and tegmentum of the mesencephalon, including subthalamic nucleus, zona incerta, the fields of Forel, and the nucleus of ansa lenticularis[GO, modified]. BM:Die-VTh subthalamus EV:0100223 EMAPA:35915 SCTID:279332007 subthalamic region MA:0000181 perithalamus BAMS:SbTh Wikipedia:Subthalamus HBA:4504 DHBA:10461 BAMS:VNT BAMS:Ventral_thalamus BIRNLEX:708 ventral thalamus DMBA:16310 Some sources treat the subthalamus as distinct from the thalamus, separated by the zona limitans intrathalamica. In MA, the ventral thalamus is part of the thalamus. Butler Hodos who identify a dorsal to ventral sequence consisting of epithalamus, dorsal thalamus, ventral thalamus and hypothalamus. We solve this by considering dorsal and ventral thalamus distinct, and the label thalamus as being ambiguous w.r.t thalamus proper (dorsal thalamus) or wider thalamus (dorsal plus ventral) ZFA:0000458 GAID:653 FMA:62010 TAO:0000458 NCIT:C52731 CALOHA:TS-2048 MESH:D020530 EHDAA2:0004470 BAMS:VT UBERON:0001900 regional part of brain