Assertion: developing placenta | /r/HasProperty | three major layers
Facets:
value: in humans
type: OTHER
value: in rodents
type: OTHER
Source sentences:
text: In humans and rodents, the fully developed placenta is composed of three major layers: the outer maternal layer, which includes decidual cells of the uterus as well as the maternal vasculature that brings blood to/from the implantation site; a middle “junctional” region, which attaches the fetal placenta to the uterus and contains fetoplacental (trophoblast) cells that invade the uterine wall and maternal vessels; and an inner layer, composed of highly branched villi that are designed for efficient nutrient exchange (72).