MEDICINE MEN
'(<a href="http://www.j-archive.com/media/2012-01-03_DJ_25.wmv">Kelly of the Clue Crew shows us a diagram of the human circulatory system on the monitor.</a>)  The theory that blood circulates from the heart through the body's arteries & back to the heart through the veins was first explained by <a href="http://www.j-archive.com/media/2012-01-03_DJ_25a.jpg" target="_blank">this</a> Englishman in 1616'
(William) Harvey