1 — Flexor pollicis longus; 2 — Flexor digitorum superficialis; 3 — Flexor carpi ulnaris; 4 — Abductor digiti minimi; 5 — Flexor digiti minimi brevis; 6 — Opponents digiti minimi; 7 — Flexor digitorum superficialis; Tendon; 8 — Lumbricals; 9 — Deep transverse metacarpal ligament; 10 — Flexor digitorum profundus; Tendon; 11 — Dorsal interosseus [I]; 12 — Flexor pollicis longus; Tendon; 13 — Adductor pollicis, transverse head; 14 — Adductor pollicis, oblique head; 15 — Flexor pollicis brevis, superficial head; 16 — Abductor pollicis brevis; 17 — Opponens pollicis; 18 — Abductor pollicis longus; 19 — Flexor retinaculum; 20 — Pronator quadratus; 21 — Flexor carpi radialis
