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.
Jason Kipnis. Jason Michael Kipnis (born April 3, 1987; nicknamed Kip) is an American professional baseball second baseman for the Cleveland Indians of Major League Baseball (MLB). He attended Glenbrook North High School in the suburbs of Chicago, where he earned three letters playing baseball for the Glenbrook North Spartans.