The trapezius muscle is a triangular, flat muscle of the shoulder girdle. It is supplied by the accessory nerve (cranial nerve XI) and the cervical plexus (C2-C4). One differentiates three parts:
Jayson Richard Gowan Werth (born May 20, 1979) is an American professional baseball outfielder for the Washington Nationals of Major League Baseball (MLB). He has previously played for the Toronto Blue Jays, Los Angeles Dodgers, and Philadelphia Phillies. He bats and throws right-handed.
Travis Shaw. Travis R. Shaw (born April 16, 1990), is an American professional baseball infielder for the Milwaukee Brewers of Major League Baseball (MLB). He previously played for the Boston Red Sox. Listed at 6 feet 4 inches (1.93 m), weighing 225 pounds (102 kg), Shaw bats left handed and throws right handed.