For 10 points, name this artery in the shoulder that gets its name from the fact that it lies right underneath the clavicle.
Dysphagia lusoria occurs when this artery is aberrant. In proximal stenosis of this artery, blood flows backwards through the vertebral artery after going through the circle of Willis, known as this artery's namesake "steal" syndrome. The thyrocervical trunk and costocervical trunk are branches off of this artery, and the right recurrent laryngeal nerve hooks around the right version of this artery. One the left side, this artery is the third branch off of the aortic arch, while on the right it is part of the brachiocephalic trunk. It also gives off the dorsal scapular artery and is the main blood supply to the arm. For 10 points, name this artery in the shoulder that gets its name from the fact that it lies right underneath the clavicle.
Dysphagia lusoria occurs when this artery is aberrant. In proximal stenosis of this artery, blood flows backwards through the vertebral artery after going through the circle of Willis, known as this artery's namesake "steal" syndrome.
{Subclavian} artery