Epicardium.
The serous pericardium (fig. 23-1) is a closed sac, the parietal layer of which lines the inner surface of the fibrous pericardium and is reflected onto the heart as the visceral layer, or epicardium. 23-1 and 23-2), which occupies the middle mediastinum (see fig. 20-8). The pericardium and its fluid lubricate the moving surfaces of the heart. The fibrous pericardium is the outermost layer, and it is firmly bound to the central tendon of the diaphragm. 1 The potential space between the parietal and visceral layers of the serous pericardium is called the pericardial cavity. 2  It normally contains a thin film of serous fluid that enables the heart to move and beat in a frictionless environment. 1 The pericardium consists of two parts : (1) a strong external layer composed of tough fibrous tissue, called the fibrous pericardium, and (2) an internal double-layered sac composed of a transparent membrane called the serous pericardium. The Pericardium. 1  The pericardium (G. around the heart) is a double-walled fibroserous sac that encloses the heart (G. kardia) and the roots of the great vessels. 2  It is located in the middle mediastinum, posterior to the body of the sternum and the 2nd to 6th costal cartilages, and anterior to T5 to T8 vertebrae. 1 The pericardium consists of two parts : (1) a strong external layer composed of tough fibrous tissue, called the fibrous pericardium, and (2) an internal double-layered sac composed of a transparent membrane called the serous p The inner layer of the pericardium is attached to the heart muscle. A coating of fluid separates the two layers of membrane, letting the heart move as it beats. Your heart has 4 chambers. The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles.  Epicardium: The inner layer of the pericardium, a conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium has outer and inner coats. The outer layer of the pericardium is called the parietal pericardium. The inner part of the pericardium that closely envelops the heart is, as stated, the epicardium; it is also called the viscer Pericardium is a fibroserous sac, which encloses the heart and roots of great vessels. It has two primary functions. Firstly, it restricts excessive movements of the heart so that injury to this vital organ of human body is avoided. Serous pericardium: This part of pericardium coats the heart and lines the fibrous pericardium on the inside. It is composed of two layers: Parietal and Visceral. Parietal layer of serous pericardium: It lines the fibrous pericardium and is reflected around the roots of great blood vessels. Fibrous pericardium: It is the strong fibrous part of pericardium, which is attached firmly to the central tendon of diaphragm below. It fuses with the outer coats of great blood vessels that pass through it. These blood vessels are: Aorta, Superior vena cave, Inferior vena cave, Pulmonary trunk, Pulmonary veins. Serous pericardium: This part of pericardium coats the heart and lines the fibrous pericardium on the inside. It is composed of two layers: Parietal and Visceral. Parietal layer of serous pericardium: It lines the fibrous pericardium and is reflected around the roots of great blood vessels. Parietal pericardium: The outer layer of the pericardium which is a conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels.  The pericardium (from the Greek περί, around and κάρδιον, heart) is a double-walled sac containing the heart and the roots of the great vessels. The pericardial sac has two layers, a serous layer and a fibrous layer. It encloses the pericardial cavity which contains pericardial fluid. In between the parietal and visceral pericardial layers there is a potential space called the pericardial cavity, which contains a supply of lubricating serous fluid known as the pericardial fluid. When the visceral layer comes into contact with heart (not the great vessels) it is known as the epicardium. Related terms: pericardium, inflammation of the heart membrane. The pericardium is a thin, sac-like covering (a membrane) that surrounds your heart. The outer layer of the pericardium surrounds the roots of your heart's major blood vessels. Ligaments attach this layer to your spinal column, diaphragm, and other parts of your body. The inner layer of the pericardium is attached to the heart muscle. 
http://www.dartmouth.edu/~humananatomy/part_4/chapter_23.html http://download.videohelp.com/vitualis/med/pericardium.htm http://download.videohelp.com/vitualis/med/pericardium.htm http://www.texasheart.org/HIC/Anatomy/anatomy2.cfm http://www.medicinenet.com/script/main/art.asp?articlekey=9134 http://www.mananatomy.com/body-systems/cardiovascular-system/pericardium http://www.mananatomy.com/body-systems/cardiovascular-system/pericardium http://www.medicinenet.com/script/main/art.asp?articlekey=9130 https://en.wikipedia.org/wiki/Pericardium http://www.texasheart.org/HIC/Topics/Cond/pericard.cfm
what part of the heart is the pericardium attached to