Found in the middle of the body of the mandible between the two mental foramen
Anterior mandible. The mentalis is a paired central muscle of the lower lip, situated at the tip of the chin. It originates from the mentum.
Chin. It inserts into the chin soft tissue.
Actions elevates and wrinkles skin of chin, protrudes lower lip.
Pouting. In conjunction with orbicularis contraction, the mentalis muscle allows the lips to “pout”. The primary effect of the mentalis contraction is the upward-inward movement of the soft tissue complex of the chin, which raises the central portion of the lips in turn. In the setting of lip incompetence (the upper and lower lips do not touch each other at rest), the mentalis muscle contraction can bring temporary but strained oral competence.
Innervation – Nerve control
Mandibular branch of facial nerve
Pictures of muscles
Trigger Point Referrals
Exercise & Sports