This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Structures Passing Through The Foramen Marked in the Diagram are all EXCEPT? \nSelect and explain. \nA. Spinal accessory nerve, B. Spinal cord, C. Veebral venous plexus, D. Veebral aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The Structure Marked is Foramen Magnum Lower pa of medulla oblongata (not the spinal cord) passes through posterior pa of foramen magnum, and veebralaeries are transmitted through the subarachnoid space in foramen magnum Ref : BD chaurasia', 'role': 'assistant'}]