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Lacrimatory pathway

Following are the components of the lacrimatory pathway
  • Lacrimatory nucleus  facial nerve.
  • Greater superficial petrosal joins with deep petrosal nerve to form nerve of pterygoid canal  which pass through the pterygopalatine fossa where there is pterygopalatine ganglion.
  • Zygomatic branch of maxillary nerve.
  • Zygomaticotemporal nerve.
  • Communicating branch to lacrimal nerve - lacrimal gland.The lacrimal nerve is  derived from the ophthalmic nerve and it innervate the sensory component of the lacrimal gland.