Question

what is placenta? describe its structure. state its function in case of human female

Answer 1

Placenta is a special umbilical cord that develops in the fourth week of pregnancy. It establishes an intimate connection between the foetal membrane and the uterine wall. Function of placenta: The exchange of materials between the mother's blood and the blood of foetus takes place through the placenta

structure:The placenta is composed of both maternal tissue and tissue derived from the embryo. The chorion is the embryonic-derived portion of the placenta. It is composed of fetal blood vessels and trophoblasts which are organized into finger-like structures called chorionic villi.