Anatomy True about great cerebral vein of galen A Thalamostriate vein and choroidal vein form the great cerebral vein of galen B It forms superficial venous drainage system of brain C Great cerebral vein of galen drains into sigmoid sinus D Basal vein and deep cerebral vein unite beneath splenium of corpus callosum to form vein of galen 💡 Explanation True about great cerebral vein of galen ✓ Correct Answer: D. Basal vein and deep cerebral vein unite beneath splenium of corpus callosum to form vein of galen