depressor labii inferioris (muscle)

(redirected from depressor muscle of lower lip)
Also found in: Dictionary, Thesaurus, Encyclopedia.

de·pres·sor la·bi·i in·fe·ri·o·ris (mus·cle)

facial muscle of mouth; origin, anterior portion of base of mandible; insertion, interdigitates with fibers of orbicularis oris musculus to reach skin of lower lip; action, depresses lower lip; nerve supply, facial.