flexor hallucis brevis muscle

flex·or hal·lu·cis bre·vis mus·cle

(fleks'ŏr hal'ŭ-sis brev'is mŭs'ĕl)

Origin, medial surface of cuboid and middle and lateral cuneiform bones; insertion, by two tendons, embracing that of the flexor longus hallucis, into the sides of the base of the proximal phalanx of the great toe; action, flexes great toe; nerve supply, medial and lateral plantar.
Synonym(s): short flexor muscle of great toe.