The cervix (opening) is closed and the uterus filled with liquid the fetus float around in. It's attached with the umbilical cord to the placenta which is attached to the uterus wall. The uterus...
The umbilical cord is attached to the belly of the baby in one end and in the other end it's attached to the placenta where the baby get the nourishment from. The placenta is attached to the uterus...