Table 5-11. MICROSCOPIC CLASSIFICATIONS OF PLACENTA

Type		Endometrial side:	Endothelium	Submucosa	Epithelium		Chorion			Species

Epitheliochorial			yes		yes		yes			yes			horse, pig
Syndesmochorial			yes		yes		no			yes			ruminant
Endotheliochorial			yes		no		no			yes			cat, dog
Hemochorial			no		no		no			yes			primate, rabbit, rat