Adductor Hallucis
Foot
When this muscle overpowers abductor hallucis, your big toe drifts toward the others — hello, bunion.
Function
Adducts great toe, maintains transverse arch
Origin
Oblique head: bases of metatarsals 2-4; Transverse head: plantar ligaments of MTP joints 3-5
Insertion
Lateral base of proximal phalanx of great toe
Innervation
Deep branch of lateral plantar nerve (S2-S3)