How is the female reproductive system adapted to support the development of the embryo?

The first feature is the structure itself – the uterus is located in the abdominal cavity, protected. She has a thick muscle layer. The characteristics of the menstrual cycle also contribute to the well-being of the fetus. The moment when the embryo is attached to the wall of the uterus falls on that phase of the cycle when the uterus is most full of blood and nutrients. The fetus receives a lot of nutrition at once. The hormonal changes during pregnancy also allow the fetus to survive. After all, in fact, the embryo is a foreign antigen. But the mother’s body does not reject it, thanks to hormonal immunosuppression.