1 — Extensor pollicis brevis; 2 — Abductor pollicis longus; 3 — Extensor pollicis brevis; 4 — Extensor pollicis longus; 5 — Extensor carpi radialis longus; 6 — Extensor carpi radialis longus; 7 — Extensor digitorum; 8 — Extensor indicis; 9 — Intertendinous connections; 10 — Dorsal interosseus; 11 — Fibrous sheaths of digits of hand; 12 — Capsule of interphalangeal joint; 13 — Lumbrical [I]; 14 — Interosseus [I]; 15 — Vincula
tendinum; 16 — Adductor pollicis
