This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
Great cerebral vein of Galen formed by the union of 
Select and explain. 
A. Superfcial middle cerebral vein, B. Internal cerebral vein, C. Anterior cerebral vein, D. Middle cerebral vein
B: Internal cerebral vein
Answer: B: Internal cerebral vein 
Explanation: Great cerebral vein: This is a single median vein. It is formed by the 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: BD Chaurasia; Volume 3; 6th edition; Page no: 388