. The elements of embryology. Embryology; Embryology. 294 THE SIXTH DAY. [chap. Fig. 93. CCA. Diagram of the Condition of the Arches of the Aorta TOWARDS the ClOSE OF InCUBATION. I, 2, 3, 4, 5. the several aortic arches. external carotid. internal carotid. CCA. common carotid. Ka. ver- tebral artery. right subclavian. left subclavian. , right and left pulmonary arteries. right arterial root or division of the bulbus arteriosus, or pul- monary artery; the left root or division, constituting the aorta, is seen by its side. The system of the fif
. The elements of embryology. Embryology; Embryology. 294 THE SIXTH DAY. [chap. Fig. 93. CCA. Diagram of the Condition of the Arches of the Aorta TOWARDS the ClOSE OF InCUBATION. I, 2, 3, 4, 5. the several aortic arches. external carotid. internal carotid. CCA. common carotid. Ka. ver- tebral artery. right subclavian. left subclavian. , right and left pulmonary arteries. right arterial root or division of the bulbus arteriosus, or pul- monary artery; the left root or division, constituting the aorta, is seen by its side. The system of the fifth arch is in hghter shading. The dotted lines shew the portions of the arches which have been obhterated. arches in the shape of two vessels which, springing one from the arch of each side, grow downwards towards the lungs. At first small and narrow, these pulmonary- arteries, for such they are, grow rapidly larger and larger, so that more and more of the blood from the right ventricle is carried to the lungs. At the same time the connection between the third and fourth pairs of arches on each side grows weaker; so. 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
