The muscle that leads the thumb of the foot
The muscle that leads the thumb of the foot , m. Adductor hallucis, is located deep, directly on the metatarsal bones, and is covered with a long and short flexor of the fingers. It begins with two heads - transverse and oblique.
The transverse head , caput transversum, originates on the plantar surface of capsules of III-V metatarsophalangeal joints, from the distal ends of II-V metatarsal bones, from plantar aponeurosis (septum laterale), from deep transverse metatarsal ligaments.
The oblique head , caput obliquum, more powerful, starts from the plantar surface of the cuboid bone, the lateral sphenoid bone, the base of the II-IV metatarsal bones, the long plantar ligament and the plantar vagina m. Peronei longi. Both heads pass into a common tendon attached to the lateral sesamoid bone and the base of the proximal phalange of the big toe.
Function: brings the thumb of the foot and bends it.
Innervation: n. Plantaris lateralis (SI - SII).
Blood supply: a. Metatarseae plantares, rr. Perforantes a. Arcuatae.
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