Epimysium is a connective tissue membrane covering the muscular and glandular elements of organs. They epitomize the muscle mass of the body, thereby ensuring its lateral strength and stability, and performing various functions. The source of epimysium is various mesenchymal tissues: reticular, pericytic, subserous. Subsequently, mesenchymal cells differentiate and form connective tissue fiber. The structure of the epimysium: main tissue (fibers of different thicknesses), adipose and vascular (providing nutrition to the tissues). Vascular, in turn, is divided into a network of lymphatic and