The movement at the following joint permits a person to say NO by head movement:: (A) Atlanto-occipital joint, (B) Atlanto-axial joint, (C) C2-C3 joint, (D) C3-C4 joint
Answer is B. 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).