ANATOMY
'(<a href="http://www.j-archive.com/media/2007-06-07_DJ_20.jpg" target="_blank">Jimmy of the Clue Crew reads in front of a skeleton</a>)<br />It's the medical name for <a href="http://www.j-archive.com/media/2007-06-07_DJ_20a.jpg" target="_blank">these</a> two bones, from the Latin for "key"; in birds, they fuse to form a wishbone'
clavicle