This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of Larynx, Subject name: ENT
[{'content': 'Cricothyroid joint is a \nSelect and explain. \nA. Hinge joint, B. Hyaline joint, C. Atavistic joint, D. Synol joint', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cricothyroid joint is a synol joint. Each is formed by inferior cornu of thyroid cailage with a facet on cricoid cailage. Cricoid cailage rotates at these joints on a transverse axis which passes transversely through these joints.', 'role': 'assistant'}]