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It arises from the lateral condyle of the tibia; from the upper three-quarters of the anterior surface of the body of the fibula; from the upper part of the interosseous membrane; from the deep surface of the fascia; and from the intermuscular septa between it and the tibialis anterior on the medial, and the peroneal muscles on the lateral side.
Extensor hallucis longus: Middle part of anterior surface of fibula and interosseous membrane: Dorsal aspect of base of distal phalanx of great toe (hallux) Extends great toe and dorsiflexes ankle Extensor digitorum longus: Lateral condyle of tibia and superior three quarters of medial surface of fibula and interosseous membrane
On the front of the ankle the sheath for the Tibialis anterior extends from the upper margin of the transverse crural ligament to the interval between the diverging limbs of the cruciate ligament; those for the Extensor digitorum longus and Extensor hallucis longus reach upward to just above the level of the tips of the malleoli, the former being the higher.
A compartment space is anatomically determined by an unyielding fascial (and osseous) enclosure of the muscles.The anterior compartment syndrome of the lower leg (often referred to simply as anterior compartment syndrome), can affect any and all four muscles of that compartment: tibialis anterior, extensor hallucis longus, extensor digitorum longus, and peroneus tertius.
Proximal phalanges and extensor tendons of the 4 lateral toes: Artery: Medial and lateral plantar arteries: Nerve: Medial and lateral plantar nerves (S3) Actions: Flexes metatarsophalangeal joints, extends interphalangeal joints: Identifiers; Latin: musculus lumbricalis pedis: TA98: A04.7.02.069: TA2: 2685: FMA: 37453: Anatomical terms of muscle
Extensor carpi radialis longus; Extensor carpi radialis brevis; Extensor carpi ulnaris; Extensor digitorum; of phalanges, at all joints Posterior compartment of the forearm. Extensor digitorum; Extensor digiti minimi (little finger only) Extensor indicis (index finger only) of phalanges, at interphalangeal joints [4] Lumbricals of the hand
The two heads of each muscle form a central tendon which passes forwards deep to the deep transverse metatarsal ligament. [1] The tendons are inserted on the bases of the second, third, and fourth proximal phalanges [2] and into the aponeurosis of the tendons of the extensor digitorum longus [3] without attaching to the extensor hoods of the toes.
The extensor digitorum longus has a wide origin stretching from the lateral condyle of the tibia down along the anterior side of the fibula, and the interosseus membrane. At the ankle, the tendon divides into four that stretch across the foot to the dorsal aponeuroses of the last phalanges of the four lateral toes.