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: Anatomy
Winging of scapula is due to paralysis of nerve - 
Select and explain. 
A. Long thoracic, B. Axillary, C. Radial, D. Median
A: Long thoracic
Answer: A: Long thoracic 
Explanation: Paralysis of serratus anterior presents with winging of scapula. Nerve to serratus anterior is also known as Long thoracic nerve.