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Extensor hallucis brevis muscle

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Extensor hallucis brevis
The mucous sheaths of the tendons around the ankle. Medial aspect. (Ext. hall. long. labeled at top center.)
Muscles of the front of the leg. (Ext. halluc. long. labeled vertically at center.)
Latin musculus extensor hallucis brevis
Gray's subject #129 490
Origin: calcaneus
Insertion:
Blood:
Nerve: deep peroneal nerve
Action:
Dorlands/Elsevier m_22/12548920

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

Contents

[edit] Structure

The extensor hallucis brevis is essentially the medial part of the extensor digitorum brevis muscle. Some physiologists 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).

[edit] Innervation

The extensor hallucis brevis is innervated by the deep fibular nerve (deep peroneal nerve).

[edit] Action

The extensor hallucis brevis helps to extend the big toe.

[edit] See also

[edit] External links

Muscles of the HeadNeckTrunkUpper limbLower limbLIST OF ALL MUSCLES

ILIAC REGION/HIP FLEXORS: psoas major | psoas minor | iliacus | (Gray's s127)

THIGH: anterior femoral | sartorius | quadriceps (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis) | articularis genu
medial femoral/adductor | gracilis | pectineus | adductor brevis | adductor longus | adductor magnus
gluteal region | gluteals (maximus, medius, minimus) | tensor fasciae latae
lateral rotator group | piriformis | obturator externus | obturator internus | inferior gemellus | superior gemellus | quadratus femoris
posterior femoral/hamstring | biceps femoris | semitendinosus, semimembranosus | (Gray's s128)

LEG: anterior crural | tibialis anterior | extensor hallucis longus | extensor digitorum longus | fibularis tertius
superficial posterior crural | calf (gastrocnemius, soleus) | plantaris
deep posterior crural | popliteus | flexor hallucis longus | flexor digitorum longus | tibialis posterior
lateral crural | fibularis longus | fibularis brevis | (Gray's s129)

FOOT: dorsal | extensor digitorum brevis | extensor hallucis brevis
plantar first layer | abductor hallucis | flexor digitorum brevis | abductor digiti minimi
plantar second layer | quadratus plantae | lumbrical muscle
plantar third layer | flexor hallucis brevis | adductor hallucis | flexor digiti minimi brevis
plantar fourth layer | dorsal interossei | plantar interossei | (Gray's s131)

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