Normal 80-day Conceptus.

Normal 80-day Conceptus.
The 80-day fetus, located in the right horn, is the size of a small rat. The cotyledonary placenta is nicely outlined by the four rows of cotyledons. The individual cotyledonary arteries and veins converge along the lesser curvature of the uterus to connect with the umbilical vessels.

Drost M (1982)