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: Orthopaedics
Autonomous zone of ulnar nerve 
Select and explain. 
A. Tip of middle finger, B. Tip of little finger, C. Dorsum of 1st web space in hand, D. Base of middle finger
B: Tip of little finger
Answer: B: Tip of little finger 
Explanation: Autonomous zones of nerve 
Ulnar Nerve - Tip of little finger 
Median Nerve - Tip of index, middle finger
Radial Nerve - 1st web space on dorsum of hand 
Deep Peroneal Nerve - 1st web space on dorsum of foot