<prompt> Injury to radial nerve in lower pa of spiral groove may result in all EXCEPT:-Spare nerve supply to extensor carpi radialis longusResults in paralysis of anconeus muscleLeaves extension at elbow joint intactWeakens supination movement  <response>: Injury to radial nerve in lower pa of radial groove results in paralysis not sparing of ECRL Extensor Carpi Radialis Longus. Injury to radial nerve in lower pa of spiral groove may result in- Elbow extensors are sparedtriceps,aconeus wrist,elbow and finger extensors are paralysed sensory loss in first web space. Triceps receive branches of radial nerve in axilla and radial groove hence it will be spared, and elbow extension is intact. 