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.
The pericardium is the membrane that surrounds and protects the heart. It is composed of two layers separated by a narrow cavity. The inner layer is firmly attached to the heart wall and is known as the visceral layer or epicardium.he pericardium is the membrane that surrounds and protects the heart. It is composed of two layers separated by a narrow cavity. The inner layer is firmly attached to the heart wall and is known as the visceral layer or epicardium.