The pericardium is a double-walled sac that contains the heart and the roots of the great vessels. The outer wall of the pericardium is composed of dense connective tissue. The portion of the inner wall of the pericardium that is in contact with the heart (but not in contact with the great vessels) is the epicardium. The epicardium contains the blood vessels supplying blood to heart muscle (the coronary arteries) as well as nerve fibers.
It's been three years since the world learned of Michael Jackson's death. Photos: Remembering the King of Pop Three Years Later.
Michael Jackson's Team Reveals Secrets From 'This Is It' Stage. Dancers recall pop star's stage tricks, designer cologne. By now, everyone knows that when [artist id=1102]Michael Jackson[/artist] died, he had been exhaustively preparing for a series of London comeback shows massive in scale and mind-blowing in presentation. What everyone doesn't know is what the King of Pop was like during the final phase of his life.