Main Model
Muscles : 42 Masseter
Muscle: Masseter
Proximal Attachment: Quadrate muscle
attaching to inferior
border and medial
surface of maxillary
process of zygomatic
bone and the zygomatic arch
Distal Attachment: Angle and lateral
surface of ramus of
mandible
Innervation: Anterior
trunk of mandibular nerve
(CN V3) via
masseteric
nerve
Action on Mandible: Elevates mandible, closing jaws;
superficial fibers make limited contribution to protrusion of mandible