. The development of the chick; an introduction to embryology. Birds -- Embryology. 312 THE DEVELOPMENT OF THE CHICK onic intestine, we may next note a few details concerning some of its divisions. The history of the mesenteries is considered in Chapter XI). (Esophagus. Owing to the rapid elongation of the neck the oesophagus quickly becomes a long tube. On the sixth day its lumen becomes very narrow, and on the seventh day completely occluded immediately behind the glottis, owing to proliferation of the lining cells. On the eighth day the occluded portion :^Mh^. Please note that these images
. The development of the chick; an introduction to embryology. Birds -- Embryology. 312 THE DEVELOPMENT OF THE CHICK onic intestine, we may next note a few details concerning some of its divisions. The history of the mesenteries is considered in Chapter XI). (Esophagus. Owing to the rapid elongation of the neck the oesophagus quickly becomes a long tube. On the sixth day its lumen becomes very narrow, and on the seventh day completely occluded immediately behind the glottis, owing to proliferation of the lining cells. On the eighth day the occluded portion :^Mh^. 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 Lillie, Frank Rattray, 1870-1947. New York, Holt
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