This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mycobacterial Infections, Subject name: Dental
In leprosy nerves commonly involved? 
Select and explain. 
A. High ulnar, low median, B. High median, low ulnar, C. Triple nerve palsy, D. High radial, low median
A: High ulnar, low median
Answer: A: High ulnar, low median 
Explanation: Involvement is high ulnar (at or above elbow) and low median (at wrist). The sensory component is commonly the first and most severely affected, but occasionally there is a pure motor lesion. Autonomic dysfunction is always present in severe nerve damage. MC cranial nerve involved: Facial MC peripheral nerve involved: Ulnar>Posterior Tibial