BO VEISLAND / SCIENCE PHOTO LIBRARY BO VEISLAND / SCIENCE PHOTO LIBRARY
Broken shoulder. Artwork of a vertical (coronal) section through the bones of the shoulder, showing a fracture (centre right) of the upper part of the humerus (upper arm bone). The joint shown here is known as the glenohumeral joint, formed by the articulation of the ball of the humerus with the glenoid cavity of the scapula (shoulder blade, centre left). Part of the clavicle (collar bone) is at upper left. Also shown are joint membranes and cartilage (blue) and the ligament (white) connecting to the biceps brachii muscle (head of muscle, red, lower right). At lower centre is the cavity within the shaft of the humerus.
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