Mandibular Anatomy


(Depending on size)

  • The mandible, or lower jaw, is the bone that hinges to the skull and, together with the maxilla, forms the mouth.
  • The mandibular nerve, the third and largest branch of the trigeminal nerve, runs along the mandible.
  • The mandibular nerve has both sensory and motor functions. It divides into trunks and smaller branches to innervate the teeth and gums of the mandible, the lower lip and lower part of the face, and the muscles of mastication.