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What is Right to left movement occurs at: and explain in detail?
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.