part of part of contributes to morphology of Homo sapiens chorion membrane chorionic plate https://cdn.humanatlas.io/digital-objects/ref-organ/placenta-full-term-female/v1.1/assets/3d-vh-f-placenta-full-term.glb UMLS:C0230972 SCTID:256391000 That portion of the chorionic wall in the region of its uterine attachment, which gives rise to chorionic villi; it consists of the mesoderm that lines the chorionic vesicle and, on the maternal side, of the trophoblast that lines the intervillous spaces; in the last half of gestation, the mesodermal connective tissue is largely replaced by fibrinoid material, and the amnionic membrane is adherent to the fetal side of the plate. UBERON:0004027 NCIT:C34123 BTO:0002879 EMAPA:31872 reproductive structure extraembryonic tissue placental disc