The subclavian artery is a major blood vessel ... Passes between the anterior and middle scalene muscles (located in the neck) Ends at the outer border of the first rib where it becomes the ...

The subclavian vein is the most anterior structure and is immediately posterior to the scalenus anterior muscle and its attachment to the first rib. This muscle is divided into 2 parts.

Right aberrant subclavian artery, also called arteria lusoria, is one of the most common intrathoracic arterial anomalies. Although mostly asymptomatic, the retroesophageal and retrotracheal ...

The symptoms are due to scar tissue formation in neck muscles (called scalene muscles ... of TOS are due to obstruction or clotting of the main vein to the arm - the subclavian vein - a condition ...

Alternatively, auscultation of the subclavian artery can be done ... that passes between the anterior scalene and middle scalene muscles. There is some degree of variability regarding the number ...