Great cerebral vein of Galen drains into -
Cavernous sinus
Basal vein
Internal cerebral vein
Straight sinus
Ans. is 'd' i.e., Straight sinuso Great cerebral vein of Galen is formed by the union of two internal cerebral veins.o It is 2 cm long.o It is drains into the straight sinus.o Its tributaries arei) Internal cerebral veinsii Basal veinsiii) Occipital veinsiv) Posterior callosal vein