Snapshot A 20-year-old man presents to his primary care physician due to pain affecting the right rhomboid and levator scapulae muscles. This is accompanied by weakness of the shoulder that impairs his performance during football practice at his university. A few days prior to presentation he was tackled at his lateral chest wall during a football game. Physical examination is significant for projection of the scapula from the thoracic wall when his arms are pushing against the wall. Introduction Anatomy arises from the 5th, 6th, and 7th cervical nerve roots that innervates the serratus anterior muscle the long thoracic nerve is a pure motor nerve Clinical correlate injury to the long thoracic nerve results in winging of the scapula which can be demonstrated when login to view 14 more bullets