| a cord or band of dense, tough, inelastic, white, fibrous tissue, serving to connect a muscle with a bone or part; sinew |
| belonging to or lying within a given part of certain muscles or nerves |
extrinsic ex·trin·sic (ĭk-strĭn'sĭk, -zĭk)
adj.
Of or relating to an organ or a structure, especially a muscle, originating outside of the part where it is found or upon which it acts; adventitious.