This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Lateral surface of cerebral hemisphere is supplied mainly by? \nSelect and explain. \nA. Anterior cerebral aery, B. Middle cerebral aery, C. Posterior cerebral aery, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: The lateral surface of the hemisphere is mainly supplied by the middle cerebral aery. This includes the territories of the motor and somatosensory coices which represent the whole of the body, apa from the lower limb, and also the auditory coex and language areas.Ref: Gray's anatomy 40th edition, Chapter 17.", 'role': 'assistant'}]