Extensor hallucis brevis
Feet
- Origin
- Upper surface of the calcaneus (with the extensor digitorum brevis)
- Insertion
- Base of the proximal phalanx of the big toe
- Action
- Extends the big toe at its base joint
- Nerve supply
- Deep fibular nerve (L5–S1)
The innermost slip of the short toe extensor on top of the foot, often counted as a separate muscle. It helps lift the big toe.
Extensor hallucis brevis anatomy page →