Which description is incorrect for the layers of the heart and its serous membranes? which description is incorrect for the layers of the heart and its serous membranes? the parietal pericardium is on the deep side of the fibrous pericardium. the epicardium is also considered the parietal pericardium. the endocardium is the deepest of the layers related to the heart. the fibrous pericardium prevents overfilling of the ventricles?