1 — Pronator quadratus; 2 — Flexor carpi ulnaris; Tendon; 3 — Pisiform; 4 — Flexor retinaculum; 5 — Opponens digiti minimi; 6 — Palmar interossei; 7 — Dorsal interossei; 8 — Lumbrical; 9 — Transverse fascicles; 10 — Flexor digitorum superficialis; Tendon; 11 — Flexor digitorum profundus; Tendon; 12 — Vincula tendinum; 13 — Tendinous chiasm; 14 — Fibrous sheath; 15 — Adductor pollicis, transverse head; 16 — Adductor pollicis, oblique head; 17 — Flexor pollicis longus; Tendon; 18 — Abductor pollicis brevis; 19 — Flexor pollicis brevis; 20 — Opponens pollicis; 21 — Flexor carpi radialis; Tendon; 22 — Flexor pollicis longus
