adjacent to adjacent to dorsomedial nucleus of hypothalamus internal medullary lamina of thalamus internal medullary lamina of thalamus lamina medullaris thalami interna lamina medullaris medialis thalami lamina medullaris medialis HBA:265505134 FMA:62079 envelope (involucrum medial) (Hassler) BIRNLEX:1621 lamina medullaris interna thalami MBA:14 UMLS:C0228322 DHBA:12063 SCTID:369161003 internal medullary lamina of the thalamus BAMS:iml internal medullary lamina BAMS:im lamina medullaris interna Predominantly white regional part of thalamus consisting of a Y shaped bundle of fibers that runs the anterior-posterior length of thalamus and divides the thalamus into roughly three regions (MM: 2006-10-26). neuronames:368 UBERON:0002762 ventral nuclear group medullary lamina of thalamus