Pectoral girdle: made of clavicle and scapula, clavicle: holds shoulder in place, increases range of motion, only bone with bony attachment in axial skeleton. Medial end/sternal end(rounder,smaller) connects clavicle to sternum at sternoclavicular joint. Lateral end/acromial(broader/flatter) end connects clavicle at acromioclavicular joint with scapula. Conoid tubercle is on the inferior surface at acromial end. Xiphoid process(usually cartilage: scapula: -usually sits over ribs 2-7. Superior border, lateral border(axillary border), medial border(vertebral border) There are 3 projections: scapular spine comes across posterior side,divides dorsal body of scapula in two parts, acromion: flat enlargement on posterior lateral end, coracoid process: is small anterior projection. Suprascapular notch: indentation medial to the base of the coracoid process. Supraspinous fossa: area superior to the scapular spine. Infraspinous fossa: area inferior to the scapular spine. Glenoid cavity: proximal end of humerus sits here. Subscapular fossa:forms most of the anterior side of scapula. Supraglenoid tubercle: marks origin of biceps brachii long head.