Now that means our placenta actually develops and exists during pregnancy. And what it does is it ultimately connects our thesis to the walls of the uterus of the mother. And the placenta serves as for important functions. So it plays a role in nutrition, in excretion, in immunity, and also acts as an endocrine gland. So it basically allows the movement of our glucose, the amino acids and fatty acids from the mother to our fetus because the fetus needs these nutrients to basically produce that energy to grow and develop. Now as our fetus actually develops and grows, it produces many unwanted wasteful byproducts.