Question: what are the five layers of the heart?
Answer: Epicardium. Visceral layer of pericardium (Lamina visceralis pericardii) The epicardium is the outermost layer of the heart. ... 
Myocardium. Cardiac muscle cell (Cardiomyocytus) ... 
Endocardium. The endocardium is the innermost layer of the heart.