Injury to radial nerve in lower pa of spiral groove:: (A) Spares nerve supply to extensor carpi radialis longus, (B) Results in paralysis of anconeus muscle, (C) Leaves extensions at elbow joint intact, (D) Weakens pronation movement
Answer is C. C i.e. Leaves extension at elbow joint intact Triceps, anconeus are supplied by radial nerve above the level of spiral groove; so these are spared in injuries of radial n. at & below spiral groove thus leaving elbow extension intact Q