Yolk sac is then infiltrated with a system of blood vessels, carrying nutrients from the yolk back to the embryo. Other extra-embryonic folds expand up over the embryo to form the amniotic folds. The ...

Yolk sac is then infiltrated with a system of blood vessels, carrying nutrients from the yolk back to the embryo. Other extra-embryonic folds expand up over the embryo to form the amniotic folds. The ...

Intra-amniotic infection (IAI), or chorioamnionitis, complicates up to 10% of all pregnancies and up to 2% of labors at term. There is a significant risk of complications for the mother and the ...

Mono-mono twins are an incredibly rare type of identical twins who share both a placenta and an amniotic sac. While this makes for a high-risk pregnancy, advances in monitoring and treatment have ...

Di-di twins are like roommates with their own room and fridge. They each have their own placenta and amniotic sac – and ...