Movements of pronation and supination occurs in all the following upper limb joints, EXCEPT?: (A) Superior radio - ulnar joint, (B) Middle radio - ulnar joint, (C) Inferior radio - ulnar joint, (D) Radio - carpal joint
Answer is D. Supination and pronation movements are not possible in radio-carpal(wrist) joint because the aicular surfaces are ellipsoid shaped. Supination and pronation movements are possible in superior, middle and inferior radio-ulnar joints.