depressor anguli oris (muscle)(redirected from musculus triangularis labii inferioris)
de·pres·sor an·gu·li o·ris (mus·cle)[TA]
facial muscle of mouth; origin, anterolateral base of mandible anteriorly; insertion, blends with other muscles in lower lip near angle of mouth; action, pulls down corners of mouth; nerve supply, facial.
Synonym(s): musculus depressor anguli oris [TA], musculus triangularis (2) [TA], triangular muscle (2) [TA], musculus triangularis labii inferioris
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