Which joint is involved in side to side movement (to look right and left)
Side to side movement is due to the C1 - C2 joint called atlanto-axial joint. Atlas is C1 bone, Axis is C2 bone,the Dens of C2 is going to fit into the atlas bone forming ATLANTO-AXIAL JOINT Atlanto-occipital joint (Ellipsoidal synol joint)causes yes movement / nodding movement. Movement at Atlanto-occipital joint:
Atlanto-occipital joint
Atlanto-axial joint
C2-C3 aiculation
C6-C7 aiculation
Osteology