@zareen said in ZOO501 Assignment 2 Solution and Discussion: Differentiate between uterine endometrium and chorion (05) The endometrium is the inner epithelial layer, along with its mucous membrane, of the … Vascular spaces fuse and become interconnected, forming the placenta, … These two layers occur only in the endometrium lining the cavity of the uterus, … the ovarian cycle or the uterine cycle by observing microscopic differences at … link text