Abductor Hallucis: The abductor hallucis muscle is an intrinsic muscle of the foot. The intrinsic muscles on the plantar aspect of the foot are divided into four layers. The abductor hallucis muscle is found in the first layer of muscles. The abductor hallucis muscle participates in the abduction and flexion of the great toe.
Origin: The abductor hallucis muscle originates from the medial process of calcaneal tuberosity.
Insertion: Inserts into the medial plantar portion of proximal phalanx of the great toe.
Function: Abducts great toe at MTP joint and flexes great toe at MTP joint.
Nerve Supply: Medial plantar nerve.
