1 — Transverse sinus; 2 — Inferior anastomotic vein; 3 — Great cerebral vein; 4 — Confluence of sinuses; 5 — Straight sinus; 6 — Basilar vein; 7 — Internal cerebral vein; 8 — Inferior sagittal sinus; 9 — Superior sagittal sinus; 10 — Superior anastomotic vein (of Trolard); 11 — Deep middle cerebral vein; 12 — Anterior cerebral vein; 13 — Anterior intercavernous sinus; 14 — Superficial middle cerebral vein; 15 — Cavernous
sinus; 16 — Inferior petrosal sinus; 17 — Superior bulb of jugular vein
