Origin: Middle third of the medial surface of the fibula, interosseous membrane
Insertion: Dorsal aspect of the base of the distal phalanx of the great toe
Actions: Great toe extension, dorsiflexion of the foot
Innervation: Deep peroneal nerve (L5, S1)
Blood Supply: Branches from the anterior tibial artery
If you are looking for pain and symptoms information, please visit the Extensor Hallucis Longus Pain Page
Primary Actions of the Extensor Hallucis Longus
1. Extension of the great toe at the interphalangeal joint
Agonists: Extensor hallucis brevis
Antagonists: Flexor Hallucis Longus
2. Extension of the great toe at the metatarsophalangeal joint
Agonists: Extensor Hallucis Brevis
Antagonists:
- Flexor Hallucis Longus
- Flexor Hallucis Brevis
Secondary Actions of the Extensor Hallucis Longus
Assists with dorsiflexion of the foot at the ankle
Agonists: Tibialis anterior
Antagonists:
- Gastrocnemius
- Soleus
Peroneus tertius and extensor digitorum longus also assist with dorsiflexion of the foot at the ankle.
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References:
Clay, J. H., Allen, L., Pounds, D. (2015). Clay & Pounds' Basic Clinical Massage Therapy: Integrating Anatomy and Treatment (3rd ed.). Philadelphia, PA: Lippincott Williams & Wilkins
Netter, F. (2014). Atlas of Human Anatomy (6th ed.). Philadelphia, PA: Saunders.
Muscolino, J., (2016) Kinesiology: The Skeletal System and Muscle Function (3rd ed.). Maryland Heights, Missouri: Mosby.
Image Credits: Dreamstime
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