![Zonary Placenta.](images/cn00055.jpg)
Zonary Placenta.
Normal zonary placentation. Endotheliochorial placentation. The dark line represent the marginal lakes. Frequently the degenerated blood is dark green and is referred to as uteroverdin.
McEntee K (1973)
![Endothelial Chorion.](images/cn00317.jpg)
Endothelial Chorion.
Endotheliochorial placentation. The dark line represent the marginal lakes.
Verstegen J (2009)