| Fetal membranes | |
|---|---|
 Fetal membranes at end of second month with chorion shown in its two subdivisions | |
| Details | |
| Identifiers | |
| Latin | adnexa fetalia |
| TE | membranes_by_E6.0.2.0.0.0.1 E6.0.2.0.0.0.1 |
| Anatomical terminology | |
The fetal membranes are the four extraembryonic membranes, associated with the developing embryo, and fetus in humans and other mammals. They are the amnion, chorion, allantois, and yolk sac.[1] The amnion and the chorion are the chorioamniotic membranes that make up the amniotic sac which surrounds and protects the embryo.[2] The fetal membranes are four of six accessory organs developed by the conceptus that are not part of the embryo itself, the other two are the placenta, and the umbilical cord.[1]
- ^ a b Saladin, Kenneth S. (2011). Human anatomy (3rd ed.). New York: McGraw-Hill. pp. 91–94. ISBN 9780071222075.
- ^ "15.7E: Extraembryonic Membranes and the Physiology of the Placenta". Biology LibreTexts. 20 July 2016. Retrieved 16 June 2022.