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
Cricothyroid joint is a 
Select and explain. 
A. Hinge joint, B. Hyaline joint, C. Atavistic joint, D. Synol joint
D: Synol joint
Answer: D: Synol joint 
Explanation: 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.