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Anatomy of Facial Nerve

  • Introduction
  • Embryology
  • Nucleus
  • Surface marking
  • Functional components
  • Course and relations
  • Branches and distribution
  • Ganglia
  • Arterial Supply & Venous Drainage
  • Applied Aspects
  • Disorders


  • Facial nerve course, branching pattern, and anatomical relationships – established during the first 3 months of prenatal life
  • The nerve is not fully developed until about 4 years of age
  • The first identifiable Facial Nerve¬† tissue is seen at the third week of gestation – facioacoustic¬† primordium or crest
  • By the end of the 4th week, the facial and acoustic portions are more distinct

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