YOU: THE OWNER'S MANUAL
'(<a href="http://www.j-archive.com/media/2009-07-09_DJ_11.jpg" target="_blank">Dr. Oz holds a dissected human knee joint.</a>)  While pro athletes often tear the ACL shown <a href="http://www.j-archive.com/media/2009-07-09_DJ_11a.jpg" target="_blank">here</a>, regular folks often tear <a href="http://www.j-archive.com/media/2009-07-09_DJ_11b.jpg" target="_blank">this</a> cartilage in the middle of the knee that acts as a shock absorber'
the meniscus