11.4- Structure and Movement of the Glenohumeral Joint 1 Quiz Please sign up for the course before taking this quiz. In this image, the bone labeled “1” is1Glenohumeral Joint the sternum a humerus a scapula a glenoid fossa a clavicle In this image, the red bone labeled “3” is1Glenohumeral Joint the thoracic cavity a glenoid fossa a clavicle a humerus the sternum In this image, the red oval labeled “2” is1Glenohumeral Joint the thoracic cavity the sternum a glenoid fossa a clavicle a humerus The head of the humerus and the glenoid fossa articulate to form1 the acetabulum the acetabulofemoral joint the sternoclavicular joint the scapulothoracic joint the glenohumeral joint