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
To look right & left which type of joint is involved 
Select and explain. 
A. Ellipsoid joint, B. Pivot joint, C. Saddle joint, D. Hinge joint
B: Pivot joint
Answer: B: Pivot joint 
Explanation: Ans: B. Pivot jointRight to left movement occurs at atlanto-axial joint which is a pivot joint.