1 — Lambdoid suture; 2 — Occipital bone; 3 — Parietal foramen; 4 — Frontal bone; 5 — Coronal suture; 6 — Parietal bone; 7 — Sagittal suture; 8 — Frontal sinus; 9 — Frontal crest; 10 — Groove for superior sagittal sinus; 11 — Granular foveolae; 12 — Arterial grooves