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 Statistics: Data: Michael Jacksonâs date of birth: 8.29.1958: Michael Jacksonâs date of death: 6.25.2009: Number of albums sold worldwide: 750 Million: Number of Grammy Awards: 13: Number of American Music Awards: 26: Number of U.S. number-one singles: 13: Number of Albums that charted on Billboard: 48: Number of songs that charted on Billboard: 50