. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. --} -^ ;ââ -âBee. Br. Dors. Fig. 191. â The air passages of the lung of the chick early on the ninth day of incubation. A Lateral view; B. Mesial view. (After Locy and Larsell.) Abd. S., Abdominal Air-sac. Ant. Th. S., Anterior thoracic air-sac. Br., Bronchi. Cerv. S., Cervical air-sac. Dors., Dorsibronchi. Ect. 1, Ect. 2, etc., First to fourth Ectobronchi. Ent. 1, Ent. 2, etc., First to fourth Ento- bronchi. Lat. 3, Third laterobronchus. Lat. nioi.; Mes. moi., Lateral a
. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. --} -^ ;ââ -âBee. Br. Dors. Fig. 191. â The air passages of the lung of the chick early on the ninth day of incubation. A Lateral view; B. Mesial view. (After Locy and Larsell.) Abd. S., Abdominal Air-sac. Ant. Th. S., Anterior thoracic air-sac. Br., Bronchi. Cerv. S., Cervical air-sac. Dors., Dorsibronchi. Ect. 1, Ect. 2, etc., First to fourth Ectobronchi. Ent. 1, Ent. 2, etc., First to fourth Ento- bronchi. Lat. 3, Third laterobronchus. Lat. nioi.; Mes. moi., Lateral and mesial moieties of the interclavicular air-sac. Rec. Br., Recurrent bronchi. those of other vertebrates in having no terminal alveoli, contain- ing residual air; there is instead a system of communicating tubes through which the air flows. The abdominal air-sacs do not imdergo any considerable expansion until after the eighth day (cf. Fig. 191). Then they push through the hinder end of the pleuroperitoneal membrane, now fused with the lateral body-wall, and penetrate the latter just beneath the peritoneum. About the tenth day they begin to expand into the abdominal cavity just behind the liver, thus evaginating the peritoneum. The left sac is somewhat larger. 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 : Henry Holt
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Keywords: ., bookauthorlilliefrankrat, bookcentury1900, booksubjectembryology
