quadratus plantae (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.
Synonym(s): musculus quadratus plantae [TA], flexor accessorius (muscle) ☆ , musculus flexor accessorius ☆ , accessory flexor muscle of foot, caro quadrata sylvii, musculus pronator pedis, plantar quadrate muscle, quadrate muscle of sole
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