1 — Superior gluteal veins; 2 — Left ascending lumbar vein; 3 — External intercostal muscle; 4 — Anterior internal vertebral venous plexus; 5 — Posterior internal vertebral venous plexus; 6 — Cranial dura mater; 7 — Transverse sinus; 8 — Occipital sinus; 9 — Atlas [CI], transverse process; 10 — Deep cervical vein; 11 — Dorsal vein, dorsal branch; Posterior intercostal veins; 12 — Intervertebral vein; 13 — Spinal dura mater; 14 — Right ascending lumbar vein; 15 — Lumbar veins; 16 — Inferior gluteal veins
