Extensor hallucis brevis at a glance
- What it is
- A small muscle on the dorsum of the foot.
- Location
- Origin: upper lateral surface of the calcaneus, together with extensor digitorum brevis. Insertion: dorsal base of the proximal phalanx of the great toe.
- Function
- Extends the great toe at the metatarsophalangeal joint.
- Body system
- Muscular · paired (left and right)
- FMA ID
- FMA51144 (Foundational Model of Anatomy)
Key facts
- Innervation: deep fibular nerve (given as L5–S1 or S1–S2 in different sources)
- It is often regarded as the medial part of extensor digitorum brevis.
- Blood supply: dorsalis pedis artery (lateral tarsal branch)
Structures next to the extensor hallucis brevis
The nearest named structures in the 3D model, measured from the centre of each part:
- Deep plantar artery · cardiovascular
- Dorsal venous arch of foot · cardiovascular
- Intermediate cuneiform bone · skeletal
- Medial cuneiform bone · skeletal
- Oblique head of adductor hallucis · muscular
- Second metatarsal bone · skeletal
- Lateral cuneiform bone · skeletal
- Third metatarsal bone · skeletal
- First metatarsal bone · skeletal
- First lumbrical of foot · muscular
References
- Foundational Model of Anatomy: Extensor hallucis brevis (FMA51144). EMBL-EBI Ontology Lookup Service.
- OpenStax. Anatomy and Physiology 2e, §11.2 Naming Skeletal Muscles. Rice University, 2022.
- Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.
Related anatomy
Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.