Bensley in his Practical Anatomy of the Rabbit (p. 365), in discussing the blood vessels of the thorax describes the arch of the aorta as "beginning at the base of the heart, - - - -passes forward, and then describing a curve, in the course of which it lies slightly to the left of the median plane, turns backward along the ventral surfaces of the bodies of the thoracic vertebrae. With the exception of the coronary arteries the first branches are the large paired vessels arising from the anterior wall. They comprise the common carotid and subclavian arteries. On the right side the carotid and subclavian arise from a short common trunk, the innominate artery. The left common carotid arise; immediately to the left of this vessel or from its base. The subclavian artery (a. subclavia) is the first portion of the artery of the anterior limb. It passes from its point of origin lateral to the anterior margin of the first rib, where it is replaced by the axillary artery. Near its point of origin, it gives off several branches, the relations of which are subject to considerable variation."
Proceedings of the Iowa Academy of Science
©1920 Iowa Academy of Science, Inc.
Baldwin, Francis Marsh
"Notes on the Branches of the Aorta (Arcus Aortae) and the Subclavian Artery of the Rabbit,"
Proceedings of the Iowa Academy of Science, 27(1), 301-310.
Available at: https://scholarworks.uni.edu/pias/vol27/iss1/57