extensor digitorum longus


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extensor digitorum longus

a penniform muscle located at the lateral part of the anterior leg. It is one of four anterior crural muscles. It extends the proximal phalanges of the four small toes and dorsiflexes the foot.

extensor digitorum longus

; EDL extrinsic foot muscle, within anterior muscle compartment of lower leg
  • origin upper three-quarters of medial surface of fibula, forming a long tendon

  • insertion tendon runs down anterior aspect of lower leg, deep to and lateral of tibialis anterior; divides into four slips at anterior aspect of ankle which pass on to dorsum of foot deep to extensor retinaculum; at metatarsophalangeal joints (MTPJs), slips form dorsal (or extensor) expansions (i.e. fibrous thickenings of dorsal aspects of lesser MTPJs capsules) and extend to either side of MTPJs to the deep transverse ligament; central parts of dorsal expansions pass distally to dorsal surfaces of proximal phalanges (receiving tendon slip of extensor digitorum brevis at lateral sides [second to fourth toes only]) to insert into bases of medial phalanges; lateral and medial parts of dorsal expansions pass distally and plantarly to insert into plantar aspects of bases of distal phalanges

  • nerve supply deep peroneal nerve

  • action extension of lesser toes of interphalangeal joints and MTPJs; dorsiflexion of ankle joint; act with peroneal muscles to evert the foot

References in periodicals archive ?
The expression levels of p-ERK (A), p-p-38 (B), p-JNK (C) proteins in the extensor digitorum longus (EDL) and soleus (SOL) muscles.
Se calculo la media, la desviacion estandar y el error estandar de la media mediante la prueba de Student (Student t-test) para muestras no pareadas, y se hicieron pruebas de correlacion entre diferentes variables en los musculos soleo y extensor digitorum longus (EDL), para lo cual se utilizaron los programas estadisticos "Excel" y "GraphPad Prism".
Tuberosidad lateral: Insercion de ligamentos interoseos laterales y fibras de Ligamentos colaterales y Tendon del Extensor Hallucis Longus y Extensor Digitorum Longus.
The soleus and extensor digitorum longus (EDL) muscles were dissected free from the surrounding connective tissue10,11.
There was pain on palpation of the distal 1/3 of the left extensor digitorum longus, extensor hallicus longus, the left lateral malleolus, and 6 cm above the lateral malleolus.
For 22 mice (5 control, 8 acute, and 9 trained), the soleus and extensor digitorum longus (EDL) muscles were extracted, rinsed with cold distilled water (d[H.
Myosin heavy chain isoform composition and Ca2+ transients in fibre from enzymatically dissociated murine soleus and extensor digitorum longus muscles.
Currently, autologous donor tendons include the palmaris longus, plantaris, extensor indicis proprius, extensor digiti minimi, flexor digitorum superficialis, and extensor digitorum longus tendons [11-12].
Two transverse incisions were made on the dorsum of the foot over the extensor hallucis longus and extensor digitorum longus tendon to attach the lateral and the medial slip respectively.
Next, the anterior tibial artery is identified by palpating the area between the extensor hallucis longus tendon (which is evident on dorsiflexion of the first toe) and extensor digitorum longus muscle.
Peroneus tertius, sometimes thought of as an offshoot of extensor digitorum longus, also should be considered an assistor of dorsiflexion, (27) though it is absent in (10.
It may be as large as the Extensor Digitorum Longus or it may be absent.

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