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・ Extensive Music
・ Extensive reading
・ Extensive stage
・ Extensive-form game
・ Extensively drug-resistant tuberculosis
・ Extensometer
・ Extensor brevis muscle
・ Extensor carpi muscle
・ Extensor carpi radialis brevis muscle
・ Extensor carpi radialis longus muscle
・ Extensor carpi radialis muscle
・ Extensor carpi ulnaris muscle
・ Extensor digiti minimi muscle
・ Extensor digitorum brevis manus
・ Extensor digitorum brevis muscle
Extensor digitorum longus muscle
・ Extensor digitorum muscle
・ Extensor digitorum muscle of feet
・ Extensor digitorum reflex
・ Extensor expansion
・ Extensor hallucis brevis muscle
・ Extensor hallucis longus muscle
・ Extensor hallucis muscle
・ Extensor indicis et medii communis muscle
・ Extensor indicis muscle
・ Extensor longus muscle
・ Extensor medii proprius muscle
・ Extensor pollicis brevis muscle
・ Extensor pollicis longus muscle
・ Extensor pollicis muscle


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Extensor digitorum longus muscle : ウィキペディア英語版
Extensor digitorum longus muscle

The extensor digitorum longus is a pennate muscle, situated at the lateral part of the front of the leg.
==Origin and insertion==
It arises from the lateral condyle of the tibia; from the upper three-fourths 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 fibularis muscles on the lateral side. Between it and the tibialis anterior are the upper portions of the anterior tibial vessels and deep peroneal nerve.
The muscle passes under the superior and inferior extensor retinaculum of foot in company with the fibularis tertius, and divides into four slips, which run forward on the dorsum of the foot, and are inserted into the second and third phalanges of the four lesser toes.
The tendons to the second, third, and fourth toes are each joined, opposite the metatarsophalangeal articulations, on the lateral side by a tendon of the extensor digitorum brevis. The tendons are inserted in the following manner: each receives a fibrous expansion from the interossei and lumbricals, and then spreads out into a broad aponeurosis, which covers the dorsal surface of the first phalanx: this aponeurosis, at the articulation of the first with the second phalanx, divides into three slips—an intermediate, which is inserted into the base of the second phalanx; and two collateral slips, which, after uniting on the dorsal surface of the second phalanx, are continued onward, to be inserted into the base of the third phalanx.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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