. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. 3°° THE STOMACH respiration; the development of this may, however, be conveniently- postponed to a later chapter (Chapter XII). The oesophagus is at first a very short portion of the archenteron (Fig. 182, A), but as the heart and diaphragm recede into the thorax, it elongates (Fig. 182, B) until it eventually forms a consider- able portion of the digestive tract. Its endodermal lining, like that of the rest of the digestive tract except the pharynx, is surrounded. Fig. 182.—Reconstructions o
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. 3°° THE STOMACH respiration; the development of this may, however, be conveniently- postponed to a later chapter (Chapter XII). The oesophagus is at first a very short portion of the archenteron (Fig. 182, A), but as the heart and diaphragm recede into the thorax, it elongates (Fig. 182, B) until it eventually forms a consider- able portion of the digestive tract. Its endodermal lining, like that of the rest of the digestive tract except the pharynx, is surrounded. Fig. 182.—Reconstructions of the Digestive Tract of Embryos of (^4) mm. and (2?) 5 MM. all, Allantois; cl, cloaca; I, lung; li, liver; Rp, Rathke's pouch; 5, stomach; t, tongue; th> thyreoid body; Wd, Wolffian duct; y, yolk-stalk.—(His.) by splanchnic mesoderm whose cells become converted into non- striated muscular tissue, which, by the fourth month, has separated into an inner circular and an outer longitudinal layer. The Development of the Stomach and Intestines.—By the time the embryo has reached a length of about 5 mm. its constriction. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia : P. Blakiston's son & co.
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectembryology
