. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. REPRODUCTION. 87 Microscopic Structure of the Placenta. This varies somewliat for different forms, though, in that there is a supporting matrix, minute (capillary) blood-vessels, and epithelial coverings to the foetal and maternal surfaces, the several forms Fio. Figs. 96 to 101.—Diagrammatic representation of the minute structure of the placenta (Foster and Balfour, after Turner). F, fcetal; M, maternal placenta; e, epithelium of chorion ;
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. REPRODUCTION. 87 Microscopic Structure of the Placenta. This varies somewliat for different forms, though, in that there is a supporting matrix, minute (capillary) blood-vessels, and epithelial coverings to the foetal and maternal surfaces, the several forms Fio. Figs. 96 to 101.—Diagrammatic representation of the minute structure of the placenta (Foster and Balfour, after Turner). F, fcetal; M, maternal placenta; e, epithelium of chorion ; e', epithelium of maternal placenta; d, foetal blood-vessels ; tJ', maternal blood-vessels; V, villus. Fig. 95.—Placenta in most generalized form. Fig. 96.—structure of placenta of a pig. Fio. 97.—Of a cow. Fig. 98.—Of a fox. FiQ. 99.—Of a cat. The pig possesses the simplest form of placenta yet known. The villi fit into depressions or crypts in the maternal uterine mucous membrane. The villi, consisting of a core of connective. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mills, Wesley, 1847-1915. New York, D. Appleton
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