出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/11 21:18:02」(JST)
| Extensor hallucis longus muscle | |
|---|---|
|
The mucous sheaths of the tendons around the ankle. Lateral aspect. (Ext. hall. long. labeled at upper left.)
|
|
|
Cross-section through middle of leg. (Extensores longi digitorum et hallucis labeled at upper left.)
|
|
| Details | |
| Latin | musculus extensor hallucis longus |
| Origin | Arises from the middle portion of the fibula on the anterior surface and the interosseous membrane |
| Insertion | Inserts on the dorsal side of the base of the distal phalanx of the big toe |
|
Artery
|
anterior tibial artery |
|
Nerve
|
deep fibular nerve deep peroneal nerve, L5 (L4-S1) |
| Actions | Extends the big toe and assists in dorsiflexion of the foot at the ankle. Also is a weak evertor/ invertor |
| Antagonist | Flexor hallucis longus, Flexor hallucis brevis |
| Identifiers | |
| Gray's | p.481 |
| Dorlands /Elsevier |
m_22/12548925 |
| TA | A04.7.02.040 |
| FMA | 22533 |
| Anatomical terms of muscle | |
| This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (May 2015) |
The Extensor hallucis longus is a thin muscle, situated between the Tibialis anterior and the Extensor digitorum longus that functions to extend the big toe, dorsiflex the foot, and assists with foot eversion and inversion.
It arises from the anterior surface of the fibula for about the middle two-fourths of its extent, medial to the origin of the Extensor digitorum longus; it also arises from the interosseous membrane to a similar extent.
The anterior tibial vessels and deep peroneal nerve lie between it and the Tibialis anterior.
The fibers pass downward, and end in a tendon, which occupies the anterior border of the muscle, passes through a distinct compartment in the cruciate crural ligament, crosses from the lateral to the medial side of the anterior tibial vessels near the bend of the ankle, and is inserted into the base of the distal phalanx of the great toe.
Opposite the metatarsophalangeal articulation, the tendon gives off a thin prolongation on either side, to cover the surface of the joint.
An expansion from the medial side of the tendon is usually inserted into the base of the proximal phalanx.
Occasionally united at its origin with the Extensor digitorum longus.
Extensor ossis metatarsi hallucis, a small muscle, sometimes found as a slip from the Extensor hallucis longus, or from the Tibialis anterior, or from the Extensor digitorum longus, or as a distinct muscle; it traverses the same compartment of the transverse ligament with the Extensor hallucis longus.
Deep peroneal(fibular) nerve, branch of common peroneal(fibular) nerve (L4, L5, S1).
| This section contains a gallery of images. Galleries containing indiscriminate images of the article subject are discouraged; please improve or remove the section accordingly, moving freely licensed images to Wikimedia Commons if not already hosted there. (May 2015) |
Dorsum of Foot. Deep dissection.
Dorsum of Foot. Deep dissection.
Dorsum and sole of Foot. Ankle joint. Deep dissection
Ankle joint. Deep dissection. Medial view
Ankle joint. Deep dissection. Lateral view.
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
| リンク元 | 「深腓骨神経」「長母趾伸筋」「EHL」 |
| 関連記事 | 「long」「longus」 |
坐骨神経→'総腓骨神経'+脛骨神経 '総腓骨神経'→浅腓骨神経＋深腓骨神経
| 肉単P | 筋名 | 起始 | 停止 | 支配神経 | 機能 |
| V-1 | 前脛骨筋 | 脛骨(外側面)、骨間膜 | 内側楔状骨、第1中足骨(基底部) | 深腓骨神経 | 足関節の背屈・内反、足底のアーチ維持 |
| V-4 | 第三腓骨筋 | 腓骨（下部の前面) | 第5中足骨(基底部) | 深腓骨神経 | 足関節の外反・背屈 |
| V-5 | 長趾伸筋 | 脛骨(外側顆)、腓骨(前縁上方) | 第2-5指(基、中、末節骨底の背面) | 深腓骨神経 | 第2-5趾の伸展 |
| V-6 | 長母趾伸筋 | 腓骨（及び骨間膜の前面) | 母趾(末節骨底の背面) | 深腓骨神経 | 母趾の伸展(IP関節) |
[★] 長母趾伸筋 extensor hallucis longus