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Tympanic plexus

FieldValue
NameTympanic plexus
Latinplexus tympanicus
ImageGray911.png
CaptionView of the inner wall of the tympanum. (Grooves for tympanic plexus labeled at center.)
Image2Gray788.png
Caption2Plan of the facial and intermediate nerves and their communication with other nerves. (Tympanic plexus labeled at center.)
BranchFromCaroticotympanic nerves, tympanic nerve

The tympanic plexus is a nerve plexus within the tympanic cavity formed upon the promontory of tympanic cavity by the tympanic nerve (branch of the inferior ganglion of glossopharyngeal nerve (CN IX)), and the superior and inferior caroticotympanic nerves (post-ganglionic sympathetic branches of the internal carotid plexus).

The lesser petrosal nerve (which may be considered a continuation of the tympanic nerve) traverses the tympanic plexus.

Anatomy

Distribution

The tympanic plexus innervates the mucosa of the tympanic cavity, pharyngotympanic tube,**** and mastoid air cell. It issues a branch to the greater petrosal nerve (through an opening anterior to the oval window).

References

References

  1. Standring, Susan. (2020). "Gray's Anatomy: The Anatomical Basis of Clinical Practice".
  2. Sinnatamby, Chummy S.. (2011). "Last's Anatomy". Elsevier Australia.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

nerve-plexus glossopharyngeal-nerve
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