Extensor digitorum brevis muscle
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| Extensor digitorum brevis muscle | |
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| The mucous sheaths of the tendons around the ankle. Lateral aspect. (Extensor dig. brevis labeled at upper right.) | |
| Latin | musculus extensor digitorum brevis |
| Gray's | subject #131 490 |
| Origin | calcaneus |
| Insertion | toes |
| Artery: | |
| Nerve: | deep peroneal nerve |
| Action: | extends digits 2 through 4 |
| Antagonist: | Flexor digitorum longus, Flexor digitorum brevis |
| Dorlands /Elsevier |
m_22/12548900 |
The extensor digitorum brevis muscle is a muscle on the upper surface of the foot that helps extend digits 2 through 4.
Contents |
[edit] Structure
The extensor digitorum brevis is found on the back of the foot. It arises with the extensor hallucis brevis muscle from the calcaneus bone; many consider these two muscles are a single common muscle.
The extensor digitorum brevis divides into three tendons, which insert on the second, third, and fourth middle phalanges.
[edit] Innervation
The extensor digitorum brevis is innervated by the deep fibular nerve (deep peroneal nerve).
[edit] Action
The extensor digitorum brevis help to extend the toes to which it attaches.
[edit] See also
[edit] Additional images
 Bones of the right foot. Dorsal surface. |
 Muscles of the front of the leg. |
 Cross-section through middle of leg. |
[edit] External links
- LUC edbf
- -583729075 at GPnotebook
- SUNY Labs 16:st-0405 - "The Foot: Muscles"
- extensor+digitorum+brevis+muscle at eMedicine Dictionary
- Roche Lexicon - illustrated navigator, at Elsevier 39960.000-1
- PTCentral
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