mentalis

(redirected from M mentalis)

men·ta·lis (mus·cle)

[TA]
facial muscle of chin; origin, incisor fossa of mandible; insertion, skin of chin; action, raises and wrinkles skin of chin, thus elevating the lower lip; nerve supply, facial.

mentalis

a muscle that arises from the mandible just inferior to the incisor teeth and helps position the lip during pouting or drinking from a cup. It raises and protrudes the lower lip as it wrinkles the skin on the chin.