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Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
Facial nerves
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Facial nerves

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Dr. Waqas Nawaz …

Dr. Waqas Nawaz
PMAS arid agriculture university rawalpindi

Published in: Education
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  • 1. Waqas Nawaz11-Arid-975
  • 2. The facial nerve is the seventh (VII) of twelvepaired cranial nerves.It arises from the brainstem between the ponsand the medulla, and controls the muscles offacial expression.
  • 3.  Emerging from beneath the parotid gland upon the masseter muscle, it receives the ventral branch of the superficial temporal nerve, and divides into dorsal and ventral buccal branches.
  • 4.  The following collateral branches are given off, the first five being detached within the facial canal, and the others between the stylo-mastoid foramen and the border of the jaw. 1.The great superficial petrosal nerve (N. petrosus superficialis major) arises from the geniculate ganglion.
  • 5.  2. A delicate branch arises from the geniculate ganglion and unites with a filament issuing from the tympanic plexus to form the small superficial petrosal nerve. 3.The stapedial nerve (N. stapedius) which innervates the stapedius muscle.
  • 6.  4.The chorda tympani is a small nerve which arises a little below the previous and pursues a regular(persistent) course in a small canal in the mastoid part of the temporal bone (Canaliculus chordae tympani), to reach the tympanic cavity. 5. Anastomotic filaments unite with the auricular branch of the vagus near the stylomastoid foramen.
  • 7.  6. The posterior auricular nerve (N. auricularis aboralis) arises from the facial at its emergence from the facial canal.
  • 8.  7.The internal auricular nerve (N. auricularis internus) springs from the facial close to or in common with the posterior auricular nerve.
  • 9.  8. The digastric branch (R. digastricus) arises from the facial below the auricular nerves and descends under cover of the parotid gland. 9. The auriculo-palpebral nerve (N.auriculopalpebralis) arises from the upper edge of the facial near the posterior border of the ramus.
  • 10.  10. The cervical branch (R. colli) is small; it arises from the ventral border of the facial opposite to the preceding(previous) nerve.
  • 11.  The facial nerve usually terminates after a short course on the surface of the masseter by dividing into two buccal branches. The dorsal buccal nerve (N. buccalis dorsalis) Ventral buccal nerve (N. buccalis ventralis

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