<prompt> Vein of Galen drains intoInternal jugular veinExternal jugular veinStraight sinusSuperior sagittal sinus  <response>: The vein of Galen,also known as the great cerebral vein or great vein of Galen is a single median vein.It is formed by union of the two internal cerebral veins.It terminates in the straight sinus.Its tributaries include the basal veins,and veins from the pineal body,the colliculi,the cerebellum,and the adjoining pa of the occipital lobes of the cerebrum. REF.B D Chaurasias Human Anatomy,Vol 3,Fifth edition,Pg 448 