quadratus plantae (muscle)

(redirected from flexor accessorius (muscle))

quad·ra·tus plan·tae (mus·cle)

[TA]
muscle of second layer of plantar muscles; origin, by two heads from the lateral and medial borders of the inferior surface of the calcaneus; insertion, tendons of flexor digitorum longus; action, assists long flexor; nerve supply, lateral plantar.