Large shoulder muscles

Watch out for me saying "clavicle" when I should say "scapula". It's a slip of the tongue I have. Having a look at the larger muscles of the shoulder region, and talking about where they are and what they do (while trying not to spend too much time talking about inervation or detailed attachment sites). Music by Jahzzar: http://freemusicarchive.org/music/Jahzzar/ (Licensed for use under Creative Commons Licenses, see above links for details).