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.
Paramedics rushed to the scene and found  Michael Jackson in a coma, not breath â¦ ing. He was rushed to UCLA  Medical Center in Los Angeles, CA.   The King of Pop died the same day, June 25th 2009, at 2:26pm, due  to cardiac arrest (heart stoppage), at the age of 50.