1 — Ulnar artery; 2 — Ulnar nerve; 3 — Flexor carpi ulnaris; 4 — Pisiform; 5 — Ulnar artery, deep palmar branch; 6 — Flexor retinaculum; 7 — Superficial palmar arch; 8 — Common palmar digital arteries; 9 — Flexor digitorum superficialis; Tendon; 10 — Tendinous sheath of digitorum; 11 — Radialis indicis artery; 12 — Proper palmar digital arteries; 13 — Princeps pollicis artery; 14 — Adductor pollicis; 15 — Flexor pollicis brevis; 16 — Abductor pollicis brevis; 17 — Radial artery, superficial palmar branch; 18 — Radial artery; 19 — Median nerve; 20 — Flexor
carpi radialis; Tendon; 21 — Median nerve, palmar branch
