The connective tissues of the muscle, from deep to superficial. The endomysium is a sheath of loose connective tissue surrounding each fiber, allowing blood capillaries and nerves to reach it. The perimysium is a thicker connective tissue sheath bundling fibers into fasicles. The epimysium is the fibrous sheath surrounding the entire muscle. The fascia is the most superficial connective tissue; it can be deep (between adjacent muscles) or superficial (between muscles and skin).