Other Nerve Contributions -
  Chorda Tympani - Originates from the Facial Nerve (CN VII), travels through the inner ear, passing between the malleus and incus, and exits to the infratemporal fossa via the petrotympanic fissure.  Carries parasympathetic fibers from the superior salivatory nucleus to the submandibular ganglion.  The postganglionic fibers regulate the submandibular and sublingual salivary gland secretions.
  Lesser Petrosal Nerve - Originates from the inferior salivatory nucleus and leaves with the Glossopharyngeal Nerve (CN IX).  The nerve enters the middle ear creating the Tympanic Plexus of Jacobson on the promontory.  Upon leaving the ear, it is known as the lesser petrosal nerve.
  Otic ganglion - Found on the posterior surface of the mandibular branch of CN V (V3), parasympathetic fibers brought via the lesser petrosal nerve synapse and the postganglionic fibers travel via the auriculotemporal nerve to the parotid salivary gland to regulate its secretion.
  Submandibular Ganglion - This ganglion "hangs" from the lingual nerve of V3 and is the site of parasympathetic nerve synapses, having been carried by chorda tympani.  The postganglionic fibers travel to the submandibular and sublingual salivary glands.  Preganglionic parasympathetic fibers can also synapse at Langley's Ganglion within the submandibular salivary gland itself.