Extraembryonic Membranes
Synonyms
Extra Embryonic Membranes
Extra-Embryonic Membrane
Extra-Embryonic Membranes
Extraembryonic Membrane
Fetal Membrane
Fetal Membranes
Membrane, Extra-Embryonic
Membrane, Extraembryonic
Membrane, Fetal
Membranes, Extra-Embryonic
Membranes, Extraembryonic
Membranes, Fetal
The thin layers of tissue that surround the developing embryo. There are four extra-embryonic membranes commonly found in VERTEBRATES, such as REPTILES; BIRDS; and MAMMALS. They are the YOLK SAC, the ALLANTOIS, the AMNION, and the CHORION. These membranes provide protection and means to transport nutrients and wastes.