. The elements of embryology. Embryology; Embryology. 168 THE THIRD DAY. Fig 57. KCA. [ Diagram of the Arterial Circulation on the Third Day. 1, 2, 3. The first three pairs of aortic arches. A. The vessel formed by the junction of the three pairs of arches. Dorsal aorta formed, by the junction of the two branches A and A ; it quickly divides again into two branches which pass down one on each side of the notochord. From each of these is given off a large branch Of. A., the vitelline artery. KG A, , external and internal carotid arteries. line veins (Fig. 37, Ht), there is f


. The elements of embryology. Embryology; Embryology. 168 THE THIRD DAY. Fig 57. KCA. [ Diagram of the Arterial Circulation on the Third Day. 1, 2, 3. The first three pairs of aortic arches. A. The vessel formed by the junction of the three pairs of arches. Dorsal aorta formed, by the junction of the two branches A and A ; it quickly divides again into two branches which pass down one on each side of the notochord. From each of these is given off a large branch Of. A., the vitelline artery. KG A, , external and internal carotid arteries. line veins (Fig. 37, Ht), there is first a slight curvature towards the left; this is followed by a turn to the right, and then the heart is completely bent on itself, so that afterwards it pursues a course directed from behind quite straight forwards (except perhaps for a little incli- nation to the left) to the point where the aortic arches branch off. In this way, as shewn in section in Fig. 59, A, the end of the bulbus arteriosus (y) comes to lie just underneath (or in front of according to the position of. 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 Foster, M. (Michael), Sir, 1836-1907; Balfour, Francis M. (Francis Maitland), 1851-1882; Sedgwick, Adam, 1854-1913; Heape, Walter, 1855-1929. London : Macmillan and Co.


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Keywords: ., bookcentury1800, bookdecade1, booksubjectembryology, bookyear1883