The serratus anterior is a fascinating muscle because of its many functions. It keeps the scapula against the ribs when we throw a punch, upwardly rotates the scapula, protracts the scapula, and is a breathing muscle. Impingement of the long thoracic nerve may cause weakness of the serratus and lead to a winged scapula. NKT often finds the rhomboids overworking and the serratus underworking, as well as the serratus overworking and the external oblique underworking. This article details the anato