Shoulder joint: Your shoulder joint (glenohumeral

Shoulder Joint Your shoulder joint (glenohumeral joint ) is a ball-and-socket joint that connects your upper arm bone (humerus) and shoulder blade (scapula). This lets you move and rotate your arms. It has the greatest range of motion of all the joints in your body. Shoulder joint anatomy comprises of four separate joints, the glenohumeral joint , acromioclavicular joint , sternoclavicular joint and scapulothoracic joint . Learn about the shoulder complex, which consists of four joints and numerous ligamentous and muscular structures. The shoulder allows for a large range of motion but is also prone to dislocation and injuries. Glenohumeral joint (Articulatio glenohumeralis) The glenohumeral, or shoulder, joint is a synovial joint that attaches the upper limb to the axial skeleton. It is a ball-and-socket joint , formed between the glenoid fossa of scapula (gleno-) and the head of humerus (-humeral). Acting in conjunction with the pectoral girdle, the shoulder joint allows for a wide range of motion at the upper limb; flexion, extension, abduction, adduction, external/lateral rotation, internal/medial rotation and ...