This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
Nerve involved in Guyon&;s canal syndrome is 
Select and explain. 
A. Axillary nerve, B. Median nerve, C. Ulnar nerve, D. Radial nerve
C: Ulnar nerve
Answer: C: Ulnar nerve 
Explanation: Guyon&;s canal is formed by the pisiform and hamate and the ligament that connects them. The ulnar nerve and ulnar aery run through the tunnelGuyon&;s canal syndrome is also known as handlebar palsy (seen in cyclists)