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Tympanic plexus



Nerve: 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
Gray's subject #204 909
From caroticotympanic nerves, tympanic nerve
Dorlands/Elsevier p_24/12648546

In the tympanic cavity, the tympanic nerve (a branch of CNIX) 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.


This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e
Nerves of head and neck: the cranial nerves
I-IVolfactory • optic • oculomotor (superior branch, inferior branch) • trochlear
V: trigeminaltrigeminal ganglion • ophthalmic • maxillary • mandibular
VI: abducensno significant branches
VII: facialnervus intermedius • geniculate • inside facial canal (greater petrosal, nerve to the stapedius, chorda tympani) • at exit from stylomastoid foramen (posterior auricular, digastric • stylohyoid) • on face (temporal, zygomatic, buccal, mandibular, cervical)
VIII: vestibulocochlearcochlear (striae medullares, lateral lemniscus) • vestibular (Scarpa's ganglion)
IX: glossopharyngealnucleus ambiguus • ganglia (superior, petrous) • tympanic (tympanic plexus, lesser petrosal) • carotid sinus • pharyngeal branches • pharyngeal plexus
X: vagusganglia (jugular, nodose) • in the jugular fossa (meningeal branch, auricular branch) • in the neck (pharyngeal branch, superior laryngeal ext and int, recurrent laryngeal, superior cervical cardiac) • in the thorax (inferior cardiac, pulmonary branches, anterior vagal trunk, posterior vagal trunk) • in the abdomen (celiac branches - renal branches - hepatic branches of anterior vagal trunk - anterior gastric branches of anterior vagal trunk - posterior gastric branches of posterior vagal trunk)
XI-XIIaccessory • hypoglossal
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tympanic_plexus". A list of authors is available in Wikipedia.
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