Heberden node denotes involvement of -: (A) Distal inetrphalangeal joint, (B) Proximal interpbalangel joint, (C) Metacarpophalangeal joint, (D) Metatarsophalangeal joint
Answer is A. Ans. is 'a' i.e., Distal inetrphalangeal joint o In osteoarthritis of hand : Distal interphalangeal joint Heberden s nodeProximal interphalangeal joint Bouchard's node