Back Plasenta AF مشيمة Arabic ܫܠܝܬܐ ARC Jakaña (anatumiya) AY Cift AZ Inulnan BCL Плацэнта BE Пляцэнта BE-X-OLD Плацента Bulgarian অমরা Bengali/Bangla
The placenta is a temporary organ in the uterus (womb) of pregnant female mammals. Its main role is to transfer oxygen and nutrients from the mother's blood to the baby's blood, and to transfer waste molecules back from the baby's blood to the mother's. It also protects the baby from harmful substances in the mother's blood, and produces hormones that support the pregnancy.
The placenta is attached to the wall of the uterus and connected to the baby by big blood vessels in the umbilical cord. After the baby is born, the placenta and cord are also pushed out of the uterus. At this time the placenta and cord are often called the afterbirth.