The placenta is an organ responsible for providing oxygen and nutrients, and removing waste substances., The uterus is the organ in which the foetus develops, also called the womb., the umbilical cord links the foetus to the placenta.., The foetus turns upside down just before its born., The amniotic fluid cushions the feotus, protecting it from harm., The cervix is a tight ring of muscle that keep the foetus in place until birth., The vagina can stretch to allow the foetus through during birth..

Pregnancy

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