Very detailed anatomy question?

a href="http://books.google.com/books?id=gOmpysGBC90C&pg=PT302&lpg=PT302&dq=muscle+movement+while+eating&source=bl&ots=POO9gYUaRe&sig=OcGw3FFLlP9F84Mthx_WeuVD8JQ&hl=en&ei=ym23TaClEIbi0QG6rfDlDw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBwQ6AEwAA#v=onepage&q=muscle%20movement%20while%20eating&f=false" rel="nofollow"http://books.google.com/books?id=gOmpysG…/a