Right to left movement occurs at:: (A) Atlanto-axial, (B) Atlanto-occipital, (C) C2 -C3, (D) C3 -C4
Answer is A. Ans. a. Atlanto-axialTo look right or left ('NO' movements of head) occurs at the Atlanto-axial Joint.'YES' movements occur at the Atlanto-occipital Joint and involve flexion and extension of head over vertebra.C2-C3 and C3-C4 joints allow mainly flexion and extension of the neck and small degree of rotation is also possible.