Flexion extension in neck occurs at -: (A) Atlanto-axial joint, (B) Atlanto-occipital joint, (C) C6-C7 joint, (D) C7-T1 joint
Answer is B. Ans. is 'b' i.e., Atlanto-occipital joint o Atlantoaxial joint - Rotatory movement around vertical axis (Right to left and left to right movements).o Atlanto-occipitai joint - (i) Flexion-extension around transverse axis, (ii) Slight lateral flexion around antero-posterior axis.Also knowo Atlanto-occipital joint:- Median........................ Pivot joint.- Lateral .........................Plane synovial joint.o Atlantoaxial joint ............Ellipsoid joint.