. Chordate anatomy. Chordata; Anatomy, Comparative. THE DIGESTIVE SYSTEM 237 derm unite in the median plane to form the tubular heart and the meso- cardial membranes in which the embryonic heart is suspended. In the abdominal part of the coelom the splanchnic layers of mesoderm unite dorsal mesoderm intermediate mesoderm lateral mesoderm. Fig. 221. Schematic diagrams of cross sections at various stages to show the establishment of the coelom and mesenteries. (From Patten's "Embryology of the ;) above and below the alimentary canal to form dorsal and ventral mesen- teries. (Fig.
. Chordate anatomy. Chordata; Anatomy, Comparative. THE DIGESTIVE SYSTEM 237 derm unite in the median plane to form the tubular heart and the meso- cardial membranes in which the embryonic heart is suspended. In the abdominal part of the coelom the splanchnic layers of mesoderm unite dorsal mesoderm intermediate mesoderm lateral mesoderm. Fig. 221. Schematic diagrams of cross sections at various stages to show the establishment of the coelom and mesenteries. (From Patten's "Embryology of the ;) above and below the alimentary canal to form dorsal and ventral mesen- teries. (Fig. 221) The dorsal mesentery persists throughout life, but the greater part of the ventral mesentery disappears in ontogenesis. Only the anterior portion which connects stomach, liver and ventral body-wall. 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son & Co.
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