III.—On the Source of the Amniotic and Allantoic Fluids in Mammals
Open Access
- 1 January 1908
- journal article
- research article
- Published by Cambridge University Press (CUP) in Transactions of the Royal Society of Edinburgh
- Vol. 46 (1) , 71-102
- https://doi.org/10.1017/s0080456800015623
Abstract
In all vertebrates, as the embryo develops at one pole of the egg, it sinks inwards till it becomes completely enclosed in a hood or sac filled with fluid, the amnion. When the sac or true amnion has completely closed over the embryo, it becomes separated from the outer layer, which remains in contact with the covering of the egg as the false or chorionic amnion.Keywords
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