1 — Humerus; 2 — Scapula, costal surface; 3 — Coracoid process; 4 — Head of humerus; 5 — Subacromial bursa; 6 — Acromion; 7 — Clavicle; 8 — First rib [I]; 9 — Manubrium of sternum; 10 — Rib
1 — Humerus; 2 — Scapula, costal surface; 3 — Coracoid process; 4 — Head of humerus; 5 — Subacromial bursa; 6 — Acromion; 7 — Clavicle; 8 — First rib [I]; 9 — Manubrium of sternum; 10 — Rib