This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Ulnar injury in the arm leads to all except: 
Select and explain. 
A. Sensory loss of the medial 1/3rd of the hand, B. Weakness of the hypothenar muscles, C. Claw hand, D. Adducted thumb
D: Adducted thumb
Answer: D: Adducted thumb 
Explanation: D i.e., Adducted thumb Adductor pollicis, which is supplied by ulnar nerve, is paralysed in ulnar nerve injury. This results in loss of thumb adduction & Froment's signQ (i.e., use of FPL in place of adductors to hold paper/book between thumb & index finger)