Flexor hallucis brevis muscle


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Image by/from Image:Gray445.png modified by Uwe Gille

The Flexor hallucis brevis is a muscle of the foot that flexes the great toe.

It emerges, by a pointed tendinous process, from the medial part of the under surface area of the cuboid bone, from the adjoining part of the 3rd cuneiform, and from the prolongation of the tendon of the Tibialis posterior which is connected to that bone.

It divides in front into 2 parts, which are inserted into the medial and lateral sides of the base of the very first phalanx of the terrific toe, a sesamoid bone existing in each tendon at its insertion.

The medial part is combined with the Abductor hallucis previous to its insertion; the lateral part (in some cases referred to as the very first plantar interosseus) with the Adductor hallucis. The tendon of the Flexor hallucis longus depends on a groove in between the two.

The medial and lateral head of the flexor hallucis brevis is innervated by the medial plantar nerve. Both heads are represented by spine sectors S1, S2.

Origin subject to significant variation; it frequently gets fibers from the calcaneus or long plantar ligament. Accessory to the cuboid often desiring. Slip to very first phalanx of the 2nd toe.

Flexes the very first metatarsophalangeal joint, or the great toe. Assists to keep the medial longitudinal arch. Assists with the toe-off stage of gait supplying increased push-off.

Bones of the right foot. Plantar surface.

Flexor hallucis brevis muscle

Flexor hallucis brevis muscle

This article incorporates text in the public domain from page 493 of the 20th edition of Gray’s Anatomy (1918)


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