Flexor Hallucis Brevis Muscle

Flexor Hallucis Brevis Muscle

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.

Read more about Flexor Hallucis Brevis Muscle:  Innervation, Variations, Additional Images

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... The muscular branches supply the Abductor hallucis, the Flexor digitorum brevis, the Flexor hallucis brevis, and the first Lumbrical those for the Abductor hallucis and Flexor digitorum ...
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... First, second, and third muscle layers, and the dorsal and plantar interossei The intrinsic muscles in the sole are grouped in four layers In the first layer, flexor digitorum brevis is the large central muscle ... to fifth toes and is flanked by abductor hallucis and abductor digiti minimi ... In the second layer, the quadratus plantae, located below flexor digitorum brevis, inserts into the tendon of flexor digitorum longus on which the lumbricals originates ...