This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brainstem lesions and blood supply of CNS, Subject name: Anatomy
[{'content': 'Medulla receives its blood supply from all of the following aeries except: \nSelect and explain. \nA. Anterior spinal aery, B. Posterior inferior cerebellar aery, C. Veebral aery, D. Superior cerebellar aery', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Medulla Blood supply: 1. Anterior spinal aery - Supplies whole medial pa of medulla oblongata. 2. Posterior inferior cerebellar aery - Branch of veebral aery supplies posterolateral pa of medulla. 3. Direct branches of veebral aery.', 'role': 'assistant'}]