Flexor hallucis brevis muscle
From Wikipedia, the free encyclopedia
Flexor hallucis brevis muscle | ||
---|---|---|
Muscles of the sole of the foot. Third layer. (Flexor hallucis brevis visible at left.) | ||
Latin | musculus flexor hallucis brevis | |
Gray's | subject #131 493 | |
Origin: | ||
Insertion: | ||
Artery: | ||
Nerve: | plantar nerve | |
Action: | flex hallux | |
Antagonist: | Extensor hallucis longus muscle | |
Dorlands/Elsevier | m_22/12549111 |
The Flexor hallucis brevis arises, by a pointed tendinous process, from the medial part of the under surface of the cuboid bone, from the contiguous portion of the third cuneiform, and from the prolongation of the tendon of the Tibialis posterior which is attached to that bone.
It divides in front into two portions, which are inserted into the medial and lateral sides of the base of the first phalanx of the great toe, a sesamoid bone being present in each tendon at its insertion.
The medial portion is blended with the Abductor hallucis previous to its insertion; the lateral portion with the Adductor hallucis; the tendon of the Flexor hallucis longus lies in a groove between them; the lateral portion is sometimes described as the first Interosseous plantaris.
[edit] Variations
Origin subject to considerable variation; it often receives fibers from the calcaneus or long plantar ligament. Attachment to the cuboid sometimes wanting. Slip to first phalanx of the second toe.
[edit] Additional images
[edit] External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.