@zareen said in [ZOO501 Assignment 2 Solution and Discussion](/post/3270): > > 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](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjzkam8oZ3nAhX2wsQBHThDBIQQFjAAegQIARAB&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FEndometrium&usg=AOvVaw2lCYzsg9qhhoJArqP2sCbW)