Which of the following correctly describes the anatomy and physiology of the placenta? The placenta is attached to the mother, and villi tissues allow the blood of the mother and fetus to mix. The placenta is attached to the fetus, and villi tissues allow the blood of the mother and fetus to mix. The placenta is attached to the mother, and villi tissues prevent the mixing of blood between mother and fetus. The placenta is attached to the fetus, and villi tissues prevent the mixing of blood between mother and fetus.

The placenta is an amazing organ that develops during pregnancy. It is indeed attached to the mother's uterine wall and serves as a connection between the mother and the fetus.

The villi, which are tiny finger-like structures, play a crucial role in the exchange of nutrients and waste products between the mother and the fetus.

However, these villi tissues act as a barrier, preventing the mixing of the mother's blood and the fetus's blood. This separation ensures that the blood of the mother and fetus remain separate while still allowing the necessary exchange of nutrients and oxygen.

Hope this helps!