What Is the Levator Anguli Oris?
The levator anguli oris, also known as the triangularis labii superioris, is a muscle found in the mouth area of the face. This muscle is responsible for specific facial expressions, such as the ability to smile. As is the case with all facial muscles, the nerve supply for the levator anguli oris is from the facial nerve, also known as the seventh cranial nerve. The canine fossa is where the levator anguli oris begins. The canine fossa is a hollow depression found on the superior maxillary bone, also called the jawbone. This fossa is located near the tooth socket of the canine tooth, thus getting its name.
