Tympanic plexus

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Tympanic plexus
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View of the inner wall of the tympanum. (Grooves for tympanic plexus labeled at center.)
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Plan of the facial and intermediate nerves and their communication with other nerves. (Tympanic plexus labeled at center.)
Details
Latin plexus tympanicus
From
caroticotympanic nerves, tympanic nerve
Identifiers
Gray's p.909
Dorlands
/Elsevier
p_24/12648546
TA A14.2.01.140
FMA 77533
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[edit]

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