Ulnar injury in the arm leads to all EXCEPT:-: (A) Sensory loss of the medial 1/3rd of the hand, (B) Weakness of the hypothenar muscles, (C) Claw hand, (D) Adduction of thumb
Answer is D. 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.