Title: Cardio_The heart: structure: the heart wall

The epicardium, the outermost layer is part of the visceral pericardium, is attached to the muscle layer of the heart.

The myocardium, the middle layer consists of cardiac muscle.

The endocardium, the innermost layer consists of epithelial cells. The layer also covers the heart valves and is continuous with the lining or endothelium of all the blood vessels.