The Left Subclavian Artery Branches off directly from the arch of the aorta (as it travels down to supply oxygenated blood to the upper body) Passes between the anterior and middle scalene muscles ...

The subclavian artery leaves the thorax by passing over the first rib and between these 2 portions of the scalenus anterior muscle. At the level of the first rib, the lower cervical nerve roots ...

Imaging should include a left anterior oblique view, between 20 and 30°, to best profile the ostium of the left subclavian artery. A right anterior oblique view using the same degree of ...

Alternatively, auscultation of the subclavian artery can be done ... on a neurovascular bundle that passes between the anterior scalene and middle scalene muscles. There is some degree of ...