plantaris (muscle)

plan·tar·is (mus·cle)

[TA] small muscle of superficial posterior (plantar flexor) compartment of leg; origin, lateral supracondylar ridge; insertion, medial margin of tendo achillis and deep fascia of ankle; action, traditionally described as plantar flexion of foot; many investigators now believe the plantaris muscle to be primarily a proprioceptive organ; nerve supply, tibial nerve. Synonym(s): musculus plantaris [TA], musculus tibialis gracilis, plantar muscle