Long flexor of the big toe
Long flexor of the big toe, m. Flexor hallucis longus, occupies the most lateral position, located on the rear surface and somewhat covering m. Tibialis posterior.
The muscle originates from the lower two-thirds of the fibula , the interosseous membrane and the posterior intermuscular septum of the lower leg. Going down, passes into a long tendon, which passes under retinaculum mm. Flexorum and passes to the sole, lying in the furrow between the ram and heel bone. In this place the tendon passes under the tendon of the long flexor of the fingers, giving him a part of the fibrous bundles. Then it is directed forward and attached to the base of the distal phalanx.
Function: flexes the thumb of the foot, and also participates in flexion of the II-V toes of the foot due to fibrous tufts added to the tendons of the long flexor of the fingers; Bends and rotates the foot outward.
Innervation: n. Tibialis (LV-SII).
Blood Supply: a. Tibialis posterior.
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