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III.—On the Source of the Amniotic and Allantoic Fluids in Mammals*

Published online by Cambridge University Press:  06 July 2012

D. Noël Paton ,
B. P. Watson  and
James Kerr
D. Noël Paton
Affiliation:
Research Laboratory of the Royal College of Physicians of Edinburgh, and the Physiological Department of theUniversity of Glasgow.
B. P. Watson
Affiliation:
Research Laboratory of the Royal College of Physicians of Edinburgh, and the Physiological Department of theUniversity of Glasgow.
James Kerr
Affiliation:
Research Laboratory of the Royal College of Physicians of Edinburgh, and the Physiological Department of theUniversity of Glasgow.
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Extract

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.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 46 , Issue 1 , 1908 , pp. 71 - 102
Copyright
Copyright © Royal Society of Edinburgh 1908

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References

page 79 note * In these two experiments the percentage of iodide present cannot be given, as the weights of the specimens were not noted.

page 81 note * Copper gives a very excellent summary of the previous work on the subject.