1 — Left posterior intercostal arteries; 2 — Segmental spinal artery; 3 — Anterior radicular artery; 4 — Anterior spinal artery; 5 — Posterior radicular artery; 6 — Right posterior intercostal arteries; 7 — Right posterior spinal artery; 8 — Left posterior spinal artery; 9 — Segmental medullary artery; 10 — Vertebral artery; 11 — Ascending cervical artery; 12 — Deep cervical artery; 13 — Costocervical trunk; 14 — Thyrocervical trunk; 15 — Subclavian artery; 16 — Anterior radicular artery; 17 — Posterior spinal artery (Anastomosis); 18 — Lateral sacral arteries;
19 — Arterial plexus; Pia mater
