Blood Supply of Facial Nerve

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The facial nerve gets it’s blood supply from 4 vessels:

  • Anterior inferior cerebellar artery – at the cerebellopontine angle
  • Labyrinthine artery  (branch of anterior inferior cerebellar artery) – within internal acoustic meatus
  • Superficial petrosal artery (branch of middle meningeal artery) – geniculate ganglion and nearby parts
  • Stylomastoid artery (branch of posterior auricular artery) – mastoid segment

The arteries form a external plexus lying within the epineurium and an internal plexus which in intraneural.

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