1 — Myelencephalon; Medulla oblongata; Bulb; 2 — Basilar plexus; 3 — Cerebellum; 4 — Cavernous sinus; 5 — Pituitary gland; 6 — Telencephalon, temporal lobe; 7 — Lateral ventricle; 8 — Telencephalon, frontal lobe; 9 — Superior sagittal sinus; 10 — Interventricular foramen, frontal horn; anterior horn; 11 — Third ventricle; 12 — Sphenoparietal sinus; 13 — Superior petrosal sinus; 14 — Transverse sinus; 15 — Pons;
16 — Inferior petrosal sinus; 17 — Sigmoid sinus; 18 — Superior bulb of jugular vein
