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Extensor hallucis brevis muscle

Muscle on the top of the foot that helps to extend the big toe

Field	Value
Name	Extensor hallucis brevis
Latin	musculus extensor hallucis brevis
Image	Gray437-Musculus extensor hallucis brevis.png
Caption	Muscles of the front of the leg. (Ext. hallucis brevis colored in red.)
Image2	Extensor hallucis brevis muscle - animation.gif
Caption2	Animation
Origin	Calcaneus
Insertion	Proximal phalanx of digit 1 (hallux, or the great toe)
Blood	Dorsalis pedis artery
Nerve	Deep fibular nerve
Action	Extend hallux
Antagonist	Flexor hallucis brevis muscle

The extensor hallucis brevis is a muscle on the top of the foot that helps to extend the big toe.

Structure

The extensor hallucis brevis is essentially the medial part of the extensor digitorum brevis muscle. Some anatomists have debated whether these two muscles are distinct entities.

The extensor hallucis brevis arises from the calcaneus and inserts on the proximal phalanx of the digit 1 (the big toe).

Nerve supply

Nerve supplied by lateral terminal branch of Deep Peroneal Nerve (deep fibular nerve) (proximal sciatic branches S1, S2). Same innervation of Extensor Digitorum Brevis

Function

The extensor hallucis brevis helps to extend the big toe.

Additional images

File:Sobo 1909 308.png|Ext. hallucis brevis labeled at center. File:Slide1ABBAA.JPG|Dorsum of foot. Deep dissection. File:Slide2ABBAA.JPG|Dorsum of foot. Deep dissection.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

calf-muscles muscles-of-the-lower-limb

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