This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Osteology of Head and Neck, Subject name: Anatomy
The movement at the following joint permits a person to say NO by head movement: 
Select and explain. 
A. Atlanto-occipital joint, B. Atlanto-axial joint, C. C2-C3 joint, D. C3-C4 joint
B: Atlanto-axial joint
Answer: B: Atlanto-axial joint 
Explanation: Ans. (b) Atlanto-axial jointRef: Gray's 38th ed/521* Atlanto-occipital (between skull and Cl) joint permit nodding of head (as when indicating approval or yes) and,* Atlantoaxial joint permits the head to be turned from side to side i.e. rotation (as indicating disapproval, the NO movement).