Segmental Innervation of Muscles of the Lower Limb

      L 1   |   L 2   |   L 3   |    L 4   |    L 5   |    S 1   |   S 2   S 3
      --Ilio   Psoas ----
      --   Sartorius -----
           -  Pectineus --
            --  Gracilis --
              --  Add. Longus ---
              --    Add. Brevis ---
              -----  Add. Magnus ---
              ----- Quadriceps -----

                             Tib. Ant --
                                 Tib.Post ---
                                 Ten Fas. Lata --
                                  Glut. Med  /   Min ---
                                  Semimembranous ----
                                  Semitendinosus --------
                                   --   E.H.L. ---
                                    ---    E.D.L. --
                                    ---  Per.Ter -
                                    ---  Per.Brev ---
                                   --  Per Longus ----
                                      --   Lat.Hip.Rotator
                                      --  Gastroc ---
                                       --- Soleus /  Plantaris ---     |
                                       ----   Biceps Femoris ----
                                           Gluteus Max
                                            --    F.H.L. --
                                              F.D.Longus ---
                                                   ---Foot Musc.--
       L 1       L 2       L 3       L 4        L 5   |   S 1      S 2      S 3
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  Electrophysiologic mapping of the segmental anatomy of the muscles of the
      lower extremity.