1 — Common interosseous artery; 2 — Ulnar artery; 3 — Interosseous membrane of forearm; 4 — Palmar carpal arch; palmar carpal branches; 5 — Superficial palmar arch; 6 — Common palmar digital arteries; 7 — Proper palmar digital artery(ies); 8 — Princeps pollicis artery; 9 — Perforating branch(es); 10 — Deep palmar arch; 11 — Anterior interosseous artery; 12 — Radial artery; 13 — Posterior interosseous artery; 14 — Recurrent interosseous artery; 15 — Dorsal digital artery(ies); 16 — Dorsal metacarpal artery(ies); 17 — Dorsal carpal artery; 18 — Ulnar artery, dorsal carpal branch; 19 — Dorsal carpal arch; 20 — Palmar carpal arch; 21 — Palmar surface; 22 — Dorsal surface; 23 — Palmar metacarpal artery
