Epicardium (visceral pericardium):
-outermost layer, serous membrane by CT and epitheliuem, decreases friction of Heart
Myocardium:
-midde layer, cardiac muscle, thickest layer, pumps blood out of chambers
Endocardium:
-Inner layer, CT and epithelium, goes w/ endothelium major vessels w/ heart, has Purkinje Fibers