The fetal membranes are membranes associated with the developing fetus. The two chorioamniotic membranes are the amnion and chorion, which make up the amniotic sac that surrounds and protects the fetus. The other fetal membranes are the allantois and the secondary umbilical vesicle.
State of Texas lawsuit, was denied an abortion after experiencing a complication called preterm pre-labor rupture of membranes (PPROM) because doctors said they detected fetal cardiac activity.