There are two bones that protrude from the shoulder, one is the scapula and the other is the clavicle. The more prominent part of the scapula is called the acromion. The common acromion on the scapula is as follows: First, it is the acromion, which is located at the uppermost and outermost part of the shoulder joint and is more obvious to all. The second is the scapular gon, which is an oblique protrusion of the scapula on the dorsal side of the scapula, with the upper and lower scapular angle and the lower scapular angle respectively. The third is located slightly inside the crest of the shoulder, the front part and the rostral process, this part can only be seen in the thinner people. There are several prominent parts of the clavicle as follows: first, the acromioclavicular joint. The acromioclavicular joint is a joint consisting of the lateral head of the clavicle and the scapula, and the full length of the clavicle can be seen on the surface of the body. Second, the medial side of the acromioclavicular joint is called the sternoclavicular joint, which is the joint made up of the medial head of the clavicle and the sternum.