1 — Pronator quadratus; 2 — Extensor pollicis brevis; Tendon; 3 — Radial artery; 4 — Abductor pollicis longus; 5 — Flexor pollicis longus; 6 — Flexor digitorum superficialis; 7 — Extensor carpi radialis brevis; 8 — Flexor carpi radialis; 9 — Brachioradialis; 10 — Pronator teres;
11 — Supinator; 12 — Bicipital aponeurosis; 13 — Brachial artery; 14 — Median nerve; 15 — Brachialis; 16 — Biceps brachii; 17 — Brachial fascia; 18 — Triceps brachii, medial head; deep head; 19 — Ulnar nerve; 20 — Superior ulnar collateral artery; 21 — Medial intermuscular septum of arm; 22 — Humerus, medial epicondyle; 23 — Antebrachial fascia; 24 — Biceps brachii; Tendon; 25 — Ulnar artery; 26 — Flexor carpi
ulnaris; 27 — Palmaris longus; 28 — Ulnar nerve, dorsal branch; 29 — Antebrachial fascia; 30 — Palmaris brevis
