1 — Spinous process; 2 — Vertebral foramen; 3 — Superior vertebral notch; 4 — Vertebral body; 5 — Pedicle; 6 — Superior articular process; 7 — Costal process; 8 — Superior articular facet; 9 — Inferior articular process; 10 — Lamina; 11 — Inferior articular facet; 12 — Inferior vertebral notch