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Collar bone
In anatomy, the clavicle or collar bone is a bone located in the chest wall anterior and superior to the lungs.
It articulates with the sternum[?] medially and the acromion, part of the scapula, laterally. It is part of the shoulder girdle[?] and together with the scapula, allows for the free range of motion of the arms. Compare this with the limited range of motion of the legs.
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