Flexor digitorum longus muscle

[5] It passes obliquely forward and lateralward, superficial to the deltoid ligament of the ankle-joint, into the sole of the foot, where it crosses over the tendon of the flexor hallucis longus at the level of the navicular bone at a location known as the knot of henry[6] (also referred to as plantar tendinous chiasm),[2][3][4] and receives from it a strong tendinous slip.Flexor accessorius longus digitorum, not infrequent, origin from fibula, or tibia, or the deep fascia and ending in a tendon which, after passing beneath the laciniate ligament, joins the tendon of the long flexor or the quadratus plantæ.The flexor digitorum longus muscle is responsible for the movement and curling of the second, third, fourth and fifth toes.After passing through the tarsal tunnel, the flexor digitorum longus tendon must curve around a bony landmark called the sustentaculum tali.Support braces along with warm compresses are the preferred manner of treating flexor digitorum longus pain or strain.
The flexor digitorum longus runs along the medial posterior side of the lower leg and aids in flexions of the toes (apart from the big toe).
ArteryPosterior tibial arteryTibial nerveActionsAntagonistExtensor digitorum longusextensor digitorum brevisAnatomical terms of muscletibialis posterior muscletarsal tunneldeltoid ligamentankle-jointquadratus plantæ muscleflexor digitorum brevis muscleinterphalangeal jointflexor hallucis longustibialis posteriorsustentaculum talipublic domainGray's AnatomyMuscles of the hiphuman legIliac regionIliopsoasPsoas majorPsoas minorIliacusButtocksGluteal musclesMaximusMediusMinimusTensor fasciae lataeLateral rotator groupQuadratus femorisInferior gemellusSuperior gemellusInternal obturatorExternal obturatorPiriformiscompartmentsAnteriorSartoriusQuadricepsRectus femorisVastus lateralisVastus intermediusVastus medialisArticularis genusPosteriorHamstringBiceps femorisSemitendinosusSemimembranosusMedialPectineusGracilisAdductorLongusBrevisMagnusFasciaFemoral sheathFemoral canalFemoral ringAdductor canalAdductor hiatusMuscular lacunaFascia lataIliotibial tractLateral intermuscular septum of thighMedial intermuscular septum of thighCribriform fasciaTibialis anteriorExtensor hallucis longusFibularis (peroneus) tertiusTriceps suraeGastrocnemiusSoleusAccessory soleusAchilles tendonPlantarisPopliteusLateralFibularis (peroneus) musclesPes anserinusIntermuscular septaTransverseExtensor hallucis brevisAbductor hallucisFlexor digitorum brevisAbductor digiti minimiQuadratus plantaeLumbrical muscleFlexor hallucis brevisAdductor hallucisFlexor digiti minimi brevisDorsal interosseiPlantar interosseiPlantar fasciaPeronealInferior extensorSuperior extensorFlexor