A layer of connective tissue that ensheaths a muscle fiber and is composed mostly from reticular fibers. It also contains capillaries, nerves and lymphatics. The term cardiac skeleton is sometimes considered synonymous with endomysium, but sometimes it refers to the combination of the endomysium and perimysium. [ http://en.wikipedia.org/wiki/Endomysium ]

This is just here as a test because I lose it