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What is Great vein of Galen is formed by and explain in detail?
(A) Two internal cerebral veins # GALEN'S VEINS: The internal cerebral veins; the great vein of Galen is formed by their union.> Anterior cerebral vein also known as Galen's vein.> Great cerebral vein or Great vein of Galen is formed by union of two internal cerebral veins. It terminates in the straight sinus.