Amniotic sac: Anatomy, structure and function | Kenhub
https://www.kenhub.com/en/library/anatomy/amniotic-sac
WebOct 30, 2023 · The amniotic sac, also known as the "bag of waters", is a transparent fluid filled sac in which the embryo/fetus develops. The amniotic sac is initially formed by the amnion , which is derived from the epiblast cells of the blastocyst, and is one of the four extraembryonic membranes that forms during the first two to three weeks of development .
DA: 73 PA: 100 MOZ Rank: 5