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.
On the eve of Jackson's 51st birthday, the Los Angeles County Coroner concluded that his death was a homicide. Shortly before his death, Jackson had reportedly been administered propofol and two anti-anxiety benzodiazepinesâ lorazepam and midazolam âin his home.