<prompt> Ulnar injury in the arm leads to all EXCEPT:-Sensory loss of the medial 13rd of the handWeakness of the hypothenar musclesClaw handAdduction of thumb  <response>: Ulnar nerve supplies the adductor pollicis muscle and hence it will be paralysed in its lesion. -hypothenar muscles are supplid by ulnar nerve -Ulnar nerve Palsy leads to Claw hand deformity Hence, adduction of thumb is not a clinical finding in ulnar nerve palsy. 