Flexor digitorum longus muscle
- Flexor digitorum longus muscle
Muscle infobox
Name = Flexor digitorum longus muscle
Latin =
GraySubject = 129
GrayPage = 485
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Caption = Tendons of the foot, medial view.
Caption2 =
Origin =
Insertion =
Action = Primary action is Flex digits
Antagonist = Extensor digitorum longus, Extensor digitorum brevis
Blood = posterior tibial artery
Nerve = Tibial nerve
DorlandsPre = m_22
DorlandsSuf = 12549081
The Flexor digitorum longus is situated on the tibial side of the leg. At its origin it is thin and pointed, but it gradually increases in size as it descends. Origin and insertion
It arises from the posterior surface of the body of the tibia, from immediately below the popliteal line to within 7 or 8 cm. of its lower extremity, medial to the tibial origin of the Tibialis posterior; it also arises from the fascia covering the Tibialis posterior.
The fibers end in a tendon, which runs nearly the whole length of the posterior surface of the muscle. This tendon passes behind the medial malleolus, in a groove, common to it and the Tibialis posterior, but separated from the latter by a fibrous septum, each tendon being contained in a special compartment lined by a separate mucous sheath.
It passes obliquely forward and lateralward, superficial to the deltoid ligament of the ankle-joint, into the sole of the foot, where it crosses below the tendon of the Flexor hallucis longus, and receives from it a strong tendinous slip.
It then expands and is joined by the Quadratus plantæ, and finally divides into four tendons, which are inserted into the bases of the last phalanges of the second, third, fourth, and fifth toes, each tendon passing through an opening in the corresponding tendon of the Flexor digitorum brevis opposite the base of the first phalanx.
Variations
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.
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External links
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* [http://www.ptcentral.com/muscles/musclelegs.html#flexor%20digitorum%20longus PTCentral]
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Look at other dictionaries:
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Flexor digitorum superficialis muscle — Flexor digitorum superficialis Transverse section across distal ends of radius and ulna. (Flexor dig. subliminis labeled at center top.) Latin musculus flexor digitorum superficialis … Wikipedia
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Flexor hallucis longus muscle — Muscle infobox Name = Flexor hallucis longus muscle Latin = GraySubject = 129 GrayPage = 485 Caption = The mucous sheaths of the tendons around the ankle. Medial aspect. (Flexor hallucis longus visible at bottom center.) Caption2 = Width = 222… … Wikipedia
Flexor digitorum brevis muscle — Muscle infobox Name = Flexor digitorum brevis muscle Latin = musculus flexor digitorum brevis GraySubject = 131 GrayPage = 491 Caption = Muscles of the sole of the foot. First layer. (Flexor digitorum brevis visible at center.) Caption2 = The… … Wikipedia
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Extensor digitorum longus muscle — The mucous sheaths of the tendons around the ankle. Lateral aspect. (Extensor dig. longus labeled at upper right.) Latin musculus extensor digitorum longus … Wikipedia
Flexor carpi radialis muscle — Infobox Muscle Name = PAGENAME Latin = musculus flexor carpi radialis GraySubject = 125 GrayPage = 446 Caption = Front of the left forearm. Superficial muscles. (Flexor carpi radialis and its tendon visible in blue.) Caption2 = Front of right… … Wikipedia
musculus flexor digitorum longus — [TA] long flexor muscle of toes: origin, posterior surface of shaft of tibia; insertion, distal phalanges of four lateral toes; innervation, posterior tibial; action, flexes toes and plantar flexes foot … Medical dictionary
Extensor digitorum brevis muscle — Infobox Muscle Name = PAGENAME Latin = musculus extensor digitorum brevis GraySubject = 131 GrayPage = 490 Caption = The mucous sheaths of the tendons around the ankle. Lateral aspect. (Extensor dig. brevis labeled at upper right.) Caption2 =… … Wikipedia