. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. 198 THE DEVELOPMENT OF THE CHICK the atrium, the ventricular loop, and the bulbus arteriosus (Fig. 116). The truncus arteriosus lies in the floor of the pharynx and gives off the following vessels: (1) a short branch, the external carotid, extending into the mandibular arch; (2) complete arches in the second, third, and fourth visceral arches which join the Cdnnt. Cdrexf Fig. 115. — The circulation in the embryo and yolk-sac between the eightieth and ninetieth hours of incubation, drawn from a phot
. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. 198 THE DEVELOPMENT OF THE CHICK the atrium, the ventricular loop, and the bulbus arteriosus (Fig. 116). The truncus arteriosus lies in the floor of the pharynx and gives off the following vessels: (1) a short branch, the external carotid, extending into the mandibular arch; (2) complete arches in the second, third, and fourth visceral arches which join the Cdnnt. Cdrexf Fig. 115. — The circulation in the embryo and yolk-sac between the eightieth and ninetieth hours of incubation, drawn from a photograph by A. H. Cole. The arteries are represented in solid black; the veins in neutral tint. A fold of the yolk-sac covers the fore part of the head, a. a. 2, 3, 4, Second, third, and fourth aortic arches. Ao., Aorta. Atr., Atrium. B. a., Bulbus arteriosus. Car. ext., External carotid. Car. mt., Internal carotid. D. C, Duct of Cuvier. D. V., Ductus venosus. J., Jugu- lar vein (anterior cardinal). 1. a. V., Left anterior vitelline vem. P- V., Posterior vitelline vein. S. V., Sinus venosus. V. c. p., Posterior cardmal vein. Ven., Ventricle. V. O. M. L., Left omphalomesenteric 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
