0 relating to or joining the sternum (= the main bone in the centre of the chest) and the collarbone that goes from the top of the arms to the bottom of the neck --
On the right side the subclavian artery arises from the brachiocephalic (innominate) artery behind the right sternoclavicular articulation; on the left side it springs from the arch of the aorta.
The medial end connects with the manubrium of the sternum and gives attachments to the fibrous capsule of the sternoclavicular joint, articular disc, and interclavicular ligament.
It originates along the aortic arch, and travels upward through the superior mediastinum to the level of the left sternoclavicular joint, where it is continuous with the cervical portion.
Sternoclavicular dislocation is rare, but may result from direct trauma to the clavicle or indirect forces applied to the shoulder.
Sternoclavicular separations (dislocation and subluxation) are rare and generally caused by accident.
Despite the scapula pulling on the clavicle during impact, the clavicle remains in its general fixed position because of the sternoclavicular joint ligaments.
Each vessel passes obliquely upward, from behind the sternoclavicular joint to the level of the upper border of the thyroid cartilage, where it divides.
A sternoclavicular separation occurs when the sternum separates from the clavicle at the sternoclavicular joint.
