The placenta forms between the developing embryo and the uterine wall of the mother, consisting of finger-like projections called chorionic villi that are surrounded by uterine tissue and maternal blood. It facilitates the supply of oxygen and nutrients to the embryo while removing carbon dioxide and waste via the umbilical cord, and also acts as an endocrine tissue producing important hormones for the pregnancy.

2. PLACENTA
• After implantation, finger like projections appear
on the trophoblast called as chorionic villi.
• Uterine tissue and maternal blood surrounds the
chorionic villi.
• The chorionic villi and uterine tissue (decidua)
form a structure between developing embryo and
tissues of the mother called as placenta

3. PLACENTA FUNCTION
1.The placenta facilitates the supply of oxygen and
nutrients to the embryo
2.Help in the removal of carbon dioxide and
excretory/waste materials produced by the embryo.

4. PLACENTA FUNCTION
3.The placenta is connected to the embryo
through an umbilical cord which helps in the
transport of substances to and from the
embryo.
4.Placenta also acts as an endocrine tissue and
produces several hormones like human
chorionic gonadotropin (hCG),human placental
lactogen (hPL),estrogens, progestogen.