. The physiology of reproduction. Reproduction. FCETAL NUTRITION: THE PLACENTA 401 foetal nutriment. It was analysed by Gamgee/ who showed that the fluid contained a large amount of protein and fat and some salts, and was thus well adapted for nutrition. But Haller's view of its origin was not accepted by Turner ^ and Ercolani.' Turner showed that during pregnancy new crypts were formed in the cotyledons, and he supposed that. Fig. 92.—Columnar trophoblast-cells from the base of a fcetal villus of the placenta of the cow at the third month of pregnancy, to show phago- cytosis. (From Jenkinson'
. The physiology of reproduction. Reproduction. FCETAL NUTRITION: THE PLACENTA 401 foetal nutriment. It was analysed by Gamgee/ who showed that the fluid contained a large amount of protein and fat and some salts, and was thus well adapted for nutrition. But Haller's view of its origin was not accepted by Turner ^ and Ercolani.' Turner showed that during pregnancy new crypts were formed in the cotyledons, and he supposed that. Fig. 92.—Columnar trophoblast-cells from the base of a fcetal villus of the placenta of the cow at the third month of pregnancy, to show phago- cytosis. (From Jenkinson's " Notes on the Histology and Physiology of the Placenta in Ungulata," Proc. Zool. Soc, London, vol. i., 1906.) the uterine milk represented the secretion of these crypts. Ercolani went even further and stated that such a secretion existed in aU placentae, but Turner was strongly opposed to this : " That such a fluid (uterine milk) is produced in aU placentae, where utricular glands or follicles continue to secrete during the whole period of placental formation, is very probable. ' Gamgee, " On the Chemistry and Physiology of the Milky Fluid found in the Placental Cotyledons of Ruminants," Brit, and For. Beview, 1864. ^ Turner, " The Placentation of the Sloths," Jour, of Anat. and Phys., vol. viii., 1874. ' Ercolani, "SuU' unita del tipo anatomico della placenta,'' Mem. dell' Accad. di Bologna, 1876. 2C. 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 Marshall, F. H. A. (Francis Hugh Adam), 1878-1949; Cramer, William, 1878-1945; Lochhead, James. London, New York, Longmans, Green
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectreproduction, bookyea
