Lower lateral cutaneous nerve of arm is a branch of: (A) Radial nerve, (B) Axillary nerve, (C) Median nerve, (D) Musculocutaneous nerve
Answer is A. 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