Vitamin B complex Organic Life Vitamins contains 11 essential B vitamins! The B vitamins are necessary for everything from energy and sleep to a full head of hair! Vitamin C necessary for a strong immune system, strong bones and healthy skin.itamin B complex Organic Life Vitamins contains 11 essential B vitamins! The B vitamins are necessary for everything from energy and sleep to a full head of hair! Vitamin C necessary for a strong immune system, strong bones and healthy skin.
Heart Anatomy: Heart Wall. 1  Epicardium-the outer layer of the wall of the heart. 2  Myocardium-the muscular middle layer of the wall of the heart. 3  Endocardium-the inner layer of the heart.
It is a closed sac having two layers: the visceral layer (epicardium), immediately surrounding and applied to all the heart's surfaces, and the outer parietal layer, forming the sac, composed of strong fibrous tissue (fibrous pericardium [TA]) lined with a serous membrane (serous pericardium [TA]).ericardium. the fibroserous sac enclosing the heart and the roots of the great vessels, composed of external (fibrous) and internal (serous) layers. adherent pericardium one abnormally connected with the heart by dense fibrous tissue.