Extensor Digitorum Longus: Difference between revisions
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== Origin == | == Origin == | ||
[[File:Extensor digitorum longus1.png|thumb|404x404px]] | [[File:Extensor digitorum longus1.png|thumb|404x404px]] | ||
Most of extensor digitorum longus arises from the anterior surface of the fibula, the upper part of anterior surface of the interosseus membrane, and the lateral tibial condyle.<ref name=":0">Keith L. , Anne M. R . Clinically Oriented Anatomy . philidephia : Lippincott Williams & Wilkins.Feb 13, 2013</ref> | Most of extensor digitorum longus arises from the anterior surface of the [[fibula]], the upper part of anterior surface of the interosseus membrane, and the [[Tibia|lateral tibial condyle]].<ref name=":0">Keith L. , Anne M. R . Clinically Oriented Anatomy . philidephia : Lippincott Williams & Wilkins.Feb 13, 2013</ref> | ||
== Insertion == | == Insertion == | ||
It divides into four slips that insert into the proximal and distal phalanges of the lateral four digits of the foot. <ref name=":0" /><ref>Anatomy next. Extensor digitorium longus. Available from:https://www.anatomynext.com/extensor-digitorum-longus/ (24july 2019)</ref> | The extensor digitorum longus passes under the superior and inferior extensor retinaculum at the anterior surface of the ankle joint before reaching it's distal insertion. | ||
It divides into four slips that insert into the proximal and distal [[Ankle and Foot|phalanges]] of the lateral four digits of the foot - digits 2-5. <ref name=":0" /><ref>Anatomy next. Extensor digitorium longus. Available from:https://www.anatomynext.com/extensor-digitorum-longus/ (24july 2019)</ref> | |||
== Nerve == | == Nerve == | ||
The muscle is innervated by the deep peroneal nerve, a branch of the [[Common Peroneal Nerve|common peroneal nerve]].('''L4''', L5)<ref name=":0" /> | |||
=== Artery === | === Artery === | ||
Revision as of 21:37, 26 March 2022
This article is currently under review and may not be up to date. Please come back soon to see the finished work! (26/03/2022)
Description[edit | edit source]
The extensor digitorum longus is 1 of 4 muscles in the anterior compartment of the lower leg. The other muscles in the anterior compartment include: tibialis anterior, extensor hallucis longus, and peroneus (fibularis) tertius.
Anatomy[edit | edit source]
Origin[edit | edit source]
Most of extensor digitorum longus arises from the anterior surface of the fibula, the upper part of anterior surface of the interosseus membrane, and the lateral tibial condyle.[2]
Insertion[edit | edit source]
The extensor digitorum longus passes under the superior and inferior extensor retinaculum at the anterior surface of the ankle joint before reaching it's distal insertion.
It divides into four slips that insert into the proximal and distal phalanges of the lateral four digits of the foot - digits 2-5. [2][3]
Nerve[edit | edit source]
The muscle is innervated by the deep peroneal nerve, a branch of the common peroneal nerve.(L4, L5)[2]
Artery[edit | edit source]
Function[edit | edit source]
Extends lateral four digits and dorsiflexes the ankle.
Extensor digitorum longus tends to be overactive and tight for an inhibited Tibialis anterior, so stretching and myofascial release of the muscle together with activation tibialis anterior is indicated to regain muscle balance.
Clinical relevance[edit | edit source]
Assessment[edit | edit source]
Treatment[edit | edit source]
References[edit | edit source]
- ↑ Kenhub - Learn Human Anatomy. Extensor Digitorum Longus Muscle - Origins & Function - Human Anatomy - Kenhub. Available from: https://www.youtube.com/watch?v=8j8nziP2SPU&t=151s [last accessed 26/3/2022]
- ↑ 2.0 2.1 2.2 Keith L. , Anne M. R . Clinically Oriented Anatomy . philidephia : Lippincott Williams & Wilkins.Feb 13, 2013
- ↑ Anatomy next. Extensor digitorium longus. Available from:https://www.anatomynext.com/extensor-digitorum-longus/ (24july 2019)
- ↑ Kenhub - Learn Human Anatomy. Functions of the extensor digitorum longus muscle (preview) - 3D Anatomy - Kenhub. Available from: https://www.youtube.com/watch?v=4WZbUAH5rH8&t=200s [last accessed 26/3/2022]
