Medico Plasma on Instagram: "Pericardium layers- Epicardium, myocardium, and endocardium, The wall of the heart is made up of three histological layers: the epicardium, myocardium, and endocardium, and the entire heart is enclosed by the pericardium. The epicardium is the outermost layer of the heart wall and corresponds to the visceral layer of the serous pericardium. It consists of simple squamous mesothelial cells with underlying connective tissue and fat, and it contains the coronary vessels