Extensor Hallucis Brevis: Difference between revisions

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= Introduction  =
= Introduction  =


The EHB is a muscle on the top of the foot that helps to extend the big toe .It is essentially the medial part of the extensor digitorum brevis muscle.[[Image:Musculus flexor hallucis brevis1 (1).jpg|right]]  
The EHB is a muscle on the top of the foot that helps to extend the big toe .It is essentially the medial part of the extensor digitorum brevis muscle.[[Image:Musculus flexor hallucis brevis1 (1).jpg|right]]<br>


= Anatomy  =


== Origin  ==


= Anatomy =
From distal part of superior and lateral surface of calcaneus ,lateral talocalcaneal ligament and apex of inferior extensor retinaculum.


== Origin ==
== Insersion<br>  ==


From distal part of superior and lateral surface of calcaneus ,lateral talocalcaneal ligament and apex of inferior extensor retinaculum.
To dorsal surface of base of proximal phalanx of big toe .  


== Insersion<br> ==
== Nerve supply  ==


To dorsal surface of base of proximal phalanx of big toe .
Deep peroneal L4 ,L5 , S1 .  


== Nerve supply ==
== Action ==
 
Deep peroneal L4 ,L5 , S1 .
 
== Action ==


Extend the metatarsophalangeal joint of the big toe .
Extend the metatarsophalangeal joint of the big toe .

Revision as of 23:50, 25 January 2017

Introduction[edit | edit source]

The EHB is a muscle on the top of the foot that helps to extend the big toe .It is essentially the medial part of the extensor digitorum brevis muscle.

Musculus flexor hallucis brevis1 (1).jpg


Anatomy[edit | edit source]

Origin[edit | edit source]

From distal part of superior and lateral surface of calcaneus ,lateral talocalcaneal ligament and apex of inferior extensor retinaculum.

Insersion
[edit | edit source]

To dorsal surface of base of proximal phalanx of big toe .

Nerve supply[edit | edit source]

Deep peroneal L4 ,L5 , S1 .

Action[edit | edit source]

Extend the metatarsophalangeal joint of the big toe .