3.11

• The uterus and the placenta come together for the exchanging of nutrients that the baby needs to develop
• The uterus is filled with amniotic fluid when the baby is inside the uterus
• the child cannot digest food and cannot breath, as well as not being able to excrete.
• The placenta does not grow out of the mother but from the embryo.
• The blood vessels inside the placenta belong to the baby.
• The placenta grows into the wall of the uterus.
• At the placenta all the nutrients cross over into the babies blood stream
• to make this effective the placenta has a large SA
• There is a very thin barrier between the babies and the mothers blood