From Embryology

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Fig. 118. Histology of the placenta. Diagrammatic representations of the minute structure of the placenta

From Turner. See also 118b

I. Placenta in its most generalized form.

II. Structure of placenta of a Pig.

III. Of a Cow.

IV. Of a Fox.


F. the foetal ; M. the maternal placenta ; e. epithelium of chorion ; e'. epithelium of maternal placenta ; d. foetal bloodvessels ; d'. maternal blood-vessels ; v. villus.


Foster, M., Balfour, F. M., Sedgwick, A., & Heape, W. (1883). The Elements of Embryology. (2nd ed.). London: Macmillan and Co.

Volume 1 - The History of the Chick: Egg structure and incubation beginning | Summary whole incubation | First day | Second day - first half | Second day - second half | Third day | Fourth day | Fifth day | Sixth day to incubation end | Figures 1
Volume 2 - The History of the Mammalian Embryo: General Development | Embryonic Membranes and Yolk-Sac | Organs from Epiblast | Organs from Mesoblast | Alimentary Canal | Appendix | Figures 2

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