Subclavian - Subclavian artery

The subclavian can be qualified as an asymmetrical artery, since, in the right half of the human body, it originates in a different point than where it originates in the left half. In fact, while on the right it originates from the brachiocephalic trunk (the first large-caliber branch of the aorta), on the left it originates directly from the aorta.
Equipped with different branches, the subclavian artery follows a course that leads it, first, to pass behind the anterior scalene muscle and, subsequently, to transform, approximately at the level of the upper edge of the 1st rib, into an axillary artery.