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
Which of the following nerves innervates the deltoid muscle? 
Select and explain. 
A. Axillary, B. Dorsal scapular, C. Long thoracic, D. Suprascapular
A: Axillary
Answer: A: Axillary 
Explanation: The axillary nerve innervates the deltoid muscle, as well as provides sensation over the lateral pa of the arm.The dorsal scapular nerve innervates the rhomboids and levator scapulae muscles.The long thoracic nerve innervates the serratus anterior. Injury to this results in winging of the scapula.The suprascapular nerve innervates the supraspinatus and infraspinatus muscle.