https://wikimd.org/index.php?action=history&feed=atom&title=Extensor_digitorum_longus_muscle 2026-05-09T19:50:43Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Extensor_digitorum_longus_muscle&diff=5809318&oldid=prev 2024-05-22T17:47:53Z

<p>CSV import</p> <p><b>New page</b></p><div>[[File:Gray1241.png|thumb|Gray1241.png]] {{Short description|Muscle on the lateral part of the front of the leg that extends the toes and dorsiflexes the foot}}<br /> {{Infobox muscle<br /> | Name = Extensor digitorum longus muscle<br /> | Latin = Musculus extensor digitorum longus<br /> | Image = Extensor_digitorum_longus.png<br /> | Caption = The [[extensor digitorum longus muscle]] (highlighted in red)<br /> | Origin = [[Lateral condyle of the tibia]], [[anterior surface of the fibula]], [[interosseous membrane]]<br /> | Insertion = [[Dorsal surface]]; middle and distal [[phalanges]] of the [[lateral four toes]]<br /> | Blood = [[Anterior tibial artery]]<br /> | Nerve = [[Deep fibular nerve]]<br /> | Action = [[Extension (kinesiology)|Extends]] the [[toes]] and [[dorsiflexion|dorsiflexes]] the [[foot]]<br /> | Antagonist = [[Flexor digitorum longus muscle]]<br /> }}<br /> <br /> The &#039;&#039;&#039;extensor digitorum longus muscle&#039;&#039;&#039; is a [[pennate muscle]] situated at the lateral part of the front of the [[leg]]. It is one of the muscles of the [[anterior compartment of the leg]].<br /> <br /> ==Structure==<br /> The extensor digitorum longus muscle originates from the [[lateral condyle of the tibia]], the upper three-fourths of the anterior surface of the [[fibula]], and the upper part of the [[interosseous membrane]]. It also arises from the deep surface of the [[fascia]] and the intermuscular septa between it and the [[tibialis anterior muscle]] and the [[peroneus longus muscle]].<br /> <br /> The muscle fibers converge into a tendon which passes under the [[extensor retinaculum of the foot]] and divides into four slips. These slips insert into the middle and distal [[phalanges]] of the [[lateral four toes]].<br /> <br /> ==Nerve Supply==<br /> The extensor digitorum longus muscle is innervated by the [[deep fibular nerve]], which is a branch of the [[common fibular nerve]].<br /> <br /> ==Blood Supply==<br /> The blood supply to the extensor digitorum longus muscle is provided by the [[anterior tibial artery]].<br /> <br /> ==Function==<br /> The primary function of the extensor digitorum longus muscle is to extend the [[toes]] and to assist in the [[dorsiflexion]] of the [[foot]] at the [[ankle joint]]. It plays a crucial role in activities such as walking and running.<br /> <br /> ==Clinical Significance==<br /> Injuries or conditions affecting the extensor digitorum longus muscle can lead to difficulties in extending the toes and dorsiflexing the foot. This can result in a condition known as [[foot drop]], where the individual is unable to lift the front part of the foot.<br /> <br /> ==See also==<br /> * [[Extensor hallucis longus muscle]]<br /> * [[Flexor digitorum longus muscle]]<br /> * [[Anterior compartment of the leg]]<br /> * [[Deep fibular nerve]]<br /> * [[Anterior tibial artery]]<br /> <br /> ==References==<br /> {{Reflist}}<br /> <br /> [[Category:Muscles of the lower limb]]<br /> [[Category:Muscles of the leg]]<br /> [[Category:Anterior compartment of the leg]]<br /> [[Category:Deep fibular nerve]]<br /> [[Category:Anterior tibial artery]]<br /> <br /> {{muscle-stub}}</div>

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