1 — Cubital anastomosis; 2 — Ulnar recurrent artery; 3 — Ulnar nerve; 4 — Inferior ulnar collateral artery; 5 — Radial collateral artery, posterior branch; 6 — Profunda brachii artery; Deep artery of arm; 7 — Radial nerve; 8 — Brachial artery; 9 — Circumflex scapular artery; 10 — Inferior transverse scapular ligament; 11 — Superior transverse scapular ligament; 12 — Suprascapular artery; 13 — Suprascapular nerve; 14 — Acromial anastomosis; 15 — Axillary nerve; 16 — Posterior circumflex humeral artery; 17 — Posterior cutaneous nerve of arm; Posterior brachial cutaneous nerve (Radial nerve); 18 — Inferior lateral cutaneous nerve of arm; Inferior lateral brachial cutaneous nerve (Radial nerve); 19 — Radial collateral artery, anterior branch; 20 — Posterior cutaneous nerve of forearm; Posterior antebrachial cutaneous nerve (Radial nerve); 21 — Lateral cutaneous nerve of forearm; Lateral antebrachial cutaneous nerve (Musculocutaneous nerve)
