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Tympanic plexus

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Title: Tympanic plexus  
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Subject: List of subjects in Gray's Anatomy: IX. Neurology, Outline of human anatomy
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Tympanic plexus

Tympanic plexus
View of the inner wall of the tympanum. (Grooves for tympanic plexus labeled at center.)
Plan of the facial and intermediate nerves and their communication with other nerves. (Tympanic plexus labeled at center.)
Latin plexus tympanicus
caroticotympanic nerves, tympanic nerve
Gray's p.909
Anatomical terms of neuroanatomy

In the tympanic cavity, the tympanic nerve (a branch of CN IX) divides into branches which form the tympanic plexus. This plexus is located on the surface of the promontory.

This tympanic plexus gives off:

The branches of the tympanic cavity provide innervation to the mucosa of the middle ear. The lesser petrosal nerve provides autonomic parasympathetic fibers that eventually innervate the parotid gland.

External links

  • Tympanic+plexus at eMedicine Dictionary
  • cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (IX)
  • lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University)

This article incorporates text from a public domain edition of Gray's Anatomy.

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