Question | Origin | Insertion | Blood Supply | Innervation |
Extensor Digitorum Longus | Lateral tibial condyle, proximal 3/4 of medial anterior surface of fibula and adjacent interosseous membrane | Bases of middle and distal phalanges 2-4 | Ant. and lat. branches of ant. tibial a
Popliteal, lateral inferior genicula, peroneal perf, ant. tibial, ant. lat. malleolar, lat tarsal, metatarsal plantar, and digital aa | Deep peroneal n.L5,S1 |
Peroneus Tertius | Distal 1/3 of medial surface of fibula and adjoining interosseous membrane | Medial part of dorsal surface of base & shaft of 5th metatarsal | Ant. and lateral branches of ant. tibial; arcuate; 4th dorsal metatarsal a | Deep peroneal n.
L5,S1 |
Peroneus Longus | Head and proximal 2/3 of lateral surface of fibula | Lateral side of base of 1st metatarsal and medial cuneiform | Superior and inferior branches of ant. tibial a; Popliteal, anterior tibial circumflex fibular, peroneal, peroneal perf, ant lat. malleolar, lat. calcaneal, lat. tarsal, arcuate, lat. and med. plantar aa | Superficial peroneal n.
L5,S1 |
Peroneus Brevis | Distal 2/3 of lateral surface of fibula | Tubercle on base of 5th metatarsal | Same as peroneus longus | Superficial peroneal n
L5,S1 |
Tibialis Anterior | Lateral condyle, proximal 1/2 of lateral tibial shaft, adjacent ant. interosseous membrane | Medial & inferior surfaces of medial cuneiform and base of 1st metacarpal | Medial and anterior branches of anterior tibial a.
Anterior tibial recurrent a | Deep peroneal n
L4,L5 |
Extensor Hallucis Longus | Middle 1/2 of medial surface of fibula and adjacent ant. interosseous membrane | Dorsal aspect of base of distal phalanx of hallux | Anterior tibial a.
Peroneal perforating, anterior medial malleolar, and dorsalis pedis aa, branches of 1st ray with medial perforating branches | Deep peroneal n.
L5 |