. Text-book of embryology. Embryology. 58 EMBEYOLOGY OF THE LOWEE VEETEBEATES oh. itself becomes nipped off from the remainder of the archenteron (Fig. 34, C). The original archenteron is now replaced by a main portion, the. Fig. 35.—Transverse sections through embryos of Lepidosiren to illustrate the origin of the mesorlerm. A, stage 12 ; B and C, stage 14. ect, ectoderm ; end, endoderra ; ent, enteric cavity ; vies, mesoderm ; N, notochordal rudiment. enteron, the wall of which—the definitive endoderm—will eventu- ally become the lining epithelium of the alimentary canal, and, lying dorsal t
. Text-book of embryology. Embryology. 58 EMBEYOLOGY OF THE LOWEE VEETEBEATES oh. itself becomes nipped off from the remainder of the archenteron (Fig. 34, C). The original archenteron is now replaced by a main portion, the. Fig. 35.—Transverse sections through embryos of Lepidosiren to illustrate the origin of the mesorlerm. A, stage 12 ; B and C, stage 14. ect, ectoderm ; end, endoderra ; ent, enteric cavity ; vies, mesoderm ; N, notochordal rudiment. enteron, the wall of which—the definitive endoderm—will eventu- ally become the lining epithelium of the alimentary canal, and, lying dorsal to this on each side, a series of closed sacs, or practically solid. 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 MacBride, E. W. (Ernest William), 1866-1940; Kerr, John Graham, 1869-; Heape, Walter, 1855-1929. London : Macmillan
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