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': 'Structures passing through foramen magnum include all \nSelect and explain. \nA. Spinal accessory nerve, B. Spinal cord, C. Veebral aery, D. Veebral venous plexus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B. i.e. Spinal cord Lower pa of medulla oblongata (not the spinal cord)Q passes through posterior pa of foramen magnum, and veebral aeries are transmitted through the subarachnoid space in foramen magnum.Q', 'role': 'assistant'}]