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.
Four layers of tissues make up the walls of the trachea: 1  The mucosa is the innermost layer and consists of ciliated pseudostratified columnar epithelium with many goblet cells. 2  Deep to the mucosa is the submucosa layer, which is made of areolar connective tissue containing blood vessels and nervous tissue.