umls-concept:C0229548 | skos:definition | NCI: A tubular outgrowth of ectoderm from the stomodeum of the embryo; it grows dorsad toward the infundibular process of the diencephalon, around which it forms a cup-like mass, giving rise to the pars distalis and pars juxtaneuralis of the hypophysis. (On-line Medical Dictionary) | lld:umls |