This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Meninges & Blood Vessels of the Brain, Subject name: Anatomy
[{'content': 'Vein of Galen drains into - \nSelect and explain. \nA. Internal Juglar vein, B. External Juglar vein, C. Straight sinus, D. Superior sagittal sinus', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Straight sinuso Great cerebral vein of Galen is formed by union of two internal cerebral veins,o It drains into straight sinus.o Is 2 cm long.o Its tributeries are internal cerebral vein, basal vein, occipital vein and posterior callosal vein.", 'role': 'assistant'}]