. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. Fig. 124. Fig. 125. Fig. 121.—Rudimentary primitive kidney of embryonic dog. The posterior portion of the body of the embryo is seen from the ventral side, covered by the intestinal layer of the yelk-sac, which has been torn away, and thrown back in front in order to show the primi- tive kidney ducts with the primitive kidnej' tubes ia). 5, primitive vertebrj^e ; c, dorsal medulla ; d, passage into the pelvic intestinal cavity. (Haeckel, after Bisc
. A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction ... Physiology, Comparative. Fig. 124. Fig. 125. Fig. 121.—Rudimentary primitive kidney of embryonic dog. The posterior portion of the body of the embryo is seen from the ventral side, covered by the intestinal layer of the yelk-sac, which has been torn away, and thrown back in front in order to show the primi- tive kidney ducts with the primitive kidnej' tubes ia). 5, primitive vertebrj^e ; c, dorsal medulla ; d, passage into the pelvic intestinal cavity. (Haeckel, after Bischoff.) Fig. ViT),—Primitive kidney of a human embryo, w. the uriue-tuhes of the primitive kidney ; w. Wolffian duct: ir', "upper end of the latter (Blorgagni's hydatid): /», MuUerian duct; m', upper end of the latter (Fallopian hydatid); g, hermaphrodite gland. (After Kobelt.) duct and also from an intermediate cell-mass, from which lat- ter the Malpighian bodies take rise. The tubes, at first not con-. 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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