Fig. 6From: The fetal-maternal interface of the nine-banded armadillo: endothelial cells of maternal sinus are partially replaced by trophoblastIllustration of the fetal-maternal interface in mid-gestation stage in longitudinal section. Note that endothelium of the intervillous space is partially replaced by trophoblast on the side of the endometrial arcade, while it is intact on the myometrial side. The illustration is adapted from [17]Back to article page