Abductor Hallucis
Foot
Key to maintaining your arch — weakness contributes to flat feet and bunions.
Function
Abducts and flexes great toe, supports medial arch
Origin
Medial calcaneal tuberosity, flexor retinaculum, plantar aponeurosis
Insertion
Medial base of proximal phalanx of great toe
Innervation
Medial plantar nerve (L4-S1)