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

The fetal membranes consist of the chorion ... The chorion lies closest to the placenta. The chorionic sac encompasses the fetus and the amnion and is covered with chorionic villi until the ...

This inflammation most commonly results from bacterial infection of the amniotic fluid, the fetal membranes, the placenta, and/or the uterus. In clinical practice, the terms "chorio" and ...

In-between is a semi-permeable membrane, made up of placental ... highest levels of pollution during pregnancy had the highest levels of particles in the placenta, compared with the 10 who had ...