The blastocyst cells that do not become part of the human body form the placenta and other supporting tissues necessary for fetal development. These cells contribute to the formation of structures that facilitate the exchange of nutrients and waste between the mother and the developing embryo.
cleavage->gastrulation->implantation->formation of placenta->first labor
No, the endometrium does not directly participate in the formation of the placenta. The placenta is formed from the embryonic tissue (trophoblast) and the maternal tissue (decidua) lining the uterus, not from the endometrium.
eyebrows, eyelids, lacrimal apparatus, conjunctiva, and extrinsic eye muscles
The scientific study of the formation and shape of mountains is called orogenesis. It focuses on the processes that lead to the creation of mountain ranges and the geological structures that contribute to their shape and formation.
umbilical cord and fetus
Placenta.
Chorionic villi & Decidua Basalis
Chorionic villi & Decidua Basalis
None.
The two structures that are part of the afterbirth are the placenta and the umbilical cord. The placenta facilitates nutrient and gas exchange between the mother and the fetus during pregnancy, while the umbilical cord connects the fetus to the placenta, providing a lifeline for nutrients and waste removal. After childbirth, these structures are expelled from the body, marking the end of the delivery process.
placenta and germ cell