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
Lower lateral cutaneous nerve of arm is a branch of 
Select and explain. 
A. Radial nerve, B. Axillary nerve, C. Median nerve, D. Musculocutaneous nerve
A: Radial nerve
Answer: A: Radial nerve 
Explanation: Lower lateral cutaneous nerve of arm (C5 , C6 ) is a branch of radial nerve given off in the radial groove . It supplies the skin of the lower half of the lateral side of the arm. B D Chaurasia 7th edition Page no : 79