Introduction The shoulder , or glenohumeral joint , connects the upper arm to the chest. It provides articulation between the glenoid fossa of the scapula and the head of the humerus. These articulating surfaces are separated by a narrow cavity filled with synovial fluid, making it a synovial joint . The shoulder joint is an example of a ball and socket joint , which is highly mobile due to the minimal contact between its two articulation points, allowing for a wide range of movement. This extra ... The shoulder is a highly mobile region of the upper body that connects the upper limb to the trunk. It is composed of the glenohumeral joint ( shoulder joint ), the acromioclavicular joint , the sternoclavicular joint , and the scapulothoracic articulation. The shoulder allows for a wide range of motion due to its unique anatomical structure, including the humerus, scapula, and clavicle, supported by muscles, ligaments, and tendons. The shoulder joint is the articulation between the thorax and the arm. This joint is one of the most complex and mobile joints of the body as it is comprised of four articulations, plus muscles, tendons, and ligaments connecting the upper limb to the axial skeleton. 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 ...
