Extensor digitorum brevis muscle
Appearance
Extensor digitorum brevis muscle | |
---|---|
Details | |
Origin | calcaneus |
Insertion | toes |
Nerve | peroneal nerve |
Actions | extends digits 2 through 5 |
Antagonist | Flexor digitorum longus, Flexor digitorum brevis |
Identifiers | |
Latin | musculus extensor digitorum brevis |
TA98 | A04.7.02.055 |
TA2 | 2671 |
FMA | 51140 |
Anatomical terms of muscle |
The extensor digitorum brevis muscle is a muscle on the upper surface of the foot that helps extend digits 2 through 5.
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
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Bones of the right foot. Dorsal surface.
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Muscles of the front of the leg.
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Cross-section through middle of leg.
External links
- Template:MuscleLoyola
- . GPnotebook https://www.gpnotebook.co.uk/simplepage.cfm?ID=-583729075.
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(help) - Anatomy photo:16:st-0405 at the SUNY Downstate Medical Center - "The Foot: Muscles"
- Template:EMedicineDictionary
- Template:RocheLexicon
- PTCentral