Attachments: arises near the midline of on the anterior surface of the
maxilla and
mandible and
modiolus at the angle of the mouth, and inserts into the
mucous membrane of the margin of the
lip, and the raphe with
buccinator at the
modiolus.
Action: narrows the
orifice of the
mouth , purses the lips and
puckers lip edges.
Innervation: Buccal branch of the
facial nerve, CN VII.
Definitely one of your
kissing muscles.