In this article, we will discuss about the Mentalis muscle. So, let’s get started.
It originates from the anterior portion of the mandible (from the mentum) and gets inserted into the soft tissue of the chin. It is innervated by the facial nerve and artery supply is through the facial artery. Its chief action is elevation and wrinkling of the skin of the chin and protrusion of the lower lip. Clinically, Geniospasm is the genetic movement disorder of the mentalis muscle.