The fetal membranes consist of the chorion, amnion, yolk sac, and allantois. The chorion has three layers: cytotrophoblastic, chorionic connective tissue, and basement membrane. The chorion lies ...

Total duration of ruptured membranes was approximately 25 hours. Total length of active labor was approximately 19 hours. Maternal temperature and other vital signs and the fetal heart rate were ...

Preterm birth can be triggered by multiple factors involving the pregnant person, the fetus, the placenta or the fetal ...