Shoulder Special Practice Test

The key idea is distinguishing the joints that connect the upper limb to the trunk from the joints inside the shoulder itself. The shoulder girdle comprises the clavicle and the scapula and includes two main joints: the sternoclavicular joint where the collarbone meets the sternum, and the acromioclavicular joint where the clavicle meets the acromion of the scapula. The glenohumeral joint, on the other hand, is the ball-and-socket joint between the head of the humerus and the glenoid fossa of the scapula, which is a major shoulder joint rather than a girdle joint. The Zanca joint is not a recognized anatomical joint in standard human anatomy. Because it isn’t a real, established articulation, it cannot be considered one of the shoulder girdle joints.