Origin: Lateral condyle of tibia, upper 2/3 - 3/4 of medial fibular shaft surface, upper part of interosseous membrane, fascia cruris, and anterior intermuscular septum
Insertion: Splits into 4 tendon slips after inferior extensor retinaculum, each of which insert on dorsum of middle and distal phalanges as part of extensor expansion complex
Action: Extend toes 2 - 5 and dorsiflexes ankle
Innervation: Deep peroneal nerve (L4, L5, S1)
Arterial Supply: Anterior tibial artery
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Lower Extremity
- Adductor Brevis
- Adductor Longus
- Adductor Magnus
- Biceps Femoris – Long Head
- Biceps Femoris – Short Head
- Extensor Digitorum Longus
- Extensor Hallucis Longus
- Flexor Digitorum Longus
- Flexor Hallucis Longus
- Gastrocnemius
- Gluteus Maximus
- Gluteus Medius
- Gluteus Minimus
- Gracilis
- Iliacus
- Inferior Gemellus
- Obturator Externus
- Obturator Internus
- Pectineus
- Peroneus Brevis
- Peroneus Longus
- Peroneus Tertius
- Piriformis
- Plantaris
- Popliteus
- Psoas
- Quadratus Femoris
- Rectus Femoris
- Sartorius
- Semimembranosus
- Semitendinosus
- Soleus
- Superior Gemellus
- Tensor Fascia Lata
- Tibialis Anterior
- Tibialis Posterior
- Vastus Intermedius
- Vastus Lateralis
- Vastus Medialis