Extensor digitorum brevis muscle
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| Extensor digitorum brevis muscle | |
|---|---|
 | |
| 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 |
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.
Innervation
The extensor digitorum brevis is innervated by the deep fibular nerve (deep peroneal nerve).
Action
The extensor digitorum brevis help to extend the toes to which it attaches.
See also
Additional images
 Bones of the right foot. Dorsal surface. |
 Muscles of the front of the leg. |
 Cross-section through middle of leg. |
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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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
