Broken upper arm bone Coloured Xray of a fracture blue of the upper arm bone humerus The neck of the humerus has fractured separating its head upper right from its shaft below the head This type of injury would require the bone to be pinned in place to heal The humeral head connects articulates to the scapula shoulder blade to its left forming the ballandsocket shoulder joint Above the scapula lies the clavicle collar bone that articulates with the scapula The ribs of the chest are at left
