. The anatomical record. Anatomy; Anatomy. 788 GEORGE BEVIER There was no noticeable aortic impression on the vertebral column, but the anomalous subclavian (which arose from the aortic arch pointing directly toward the vertebral column and which then turned to the right at an angle of nearly ninety degrees to cross the body of the second thoracic vertebra) produced a distinct groo^'e on the left and also a flattening across the ventral aspect of the body of that vertebra. However, if the current in the artery was impeded because of its position and origin the obstruction was not sufficient to
. The anatomical record. Anatomy; Anatomy. 788 GEORGE BEVIER There was no noticeable aortic impression on the vertebral column, but the anomalous subclavian (which arose from the aortic arch pointing directly toward the vertebral column and which then turned to the right at an angle of nearly ninety degrees to cross the body of the second thoracic vertebra) produced a distinct groo^'e on the left and also a flattening across the ventral aspect of the body of that vertebra. However, if the current in the artery was impeded because of its position and origin the obstruction was not sufficient to affect the development of the right arm, for both arms seemed equalty well-developed A. vertebralis - A. subclavius dextra. Ductus arteriosus A. subclavius sinistra Fig. 3 Diagram indicating possible development of this anomaly (modified from Piersol). and were covered with a good panniculus adiposus. Strangely enough, the right ulna was 1 cm., and the right radius cm. longer than the corresponding bones of the left arm although the humeri were the same length. Although the arteria volaris superficialis originated abnormally from the radial artery about midway between the origin of the radial and the wrist no other vascular anomalies were present in the arm. The mm. pal- mares longi and extensores carpi ulnaris were completely absent. The veins also exibited slight abnormalities in the region under discussion. The vena azygos was unusually large, having a diameter of nearly 1 cm. where it joined the aorta. The v. hemiazygos crossed the vertebral colunm at the level of the. 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 Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; Ame
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