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. Ref: Human Anatomy, B D Chaurasia, 4th Edition, Volume 1, Chapter 10, Page 151; Clinical Anatomy by Regions, Richard S. Snell, 9th Edition, Chapter 9, Page 408-411.