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': 'Atalanto axial joint is: \nSelect and explain. \nA. Hinge joint, B. Ball and socket joint, C. Pivot joint, D. Saddle joint', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pivot jointThe atlantoaxial joint is a joint in the upper pa of the neck between the first and second cervical veebrae; the atlas and axis. It is a pivot joint.', 'role': 'assistant'}]