Tympanic plexus

{{Infobox nerve

| Name = Tympanic plexus

| Latin = plexus tympanicus

| Image = Gray911.png

| Caption = View of the inner wall of the tympanum. (Grooves for tympanic plexus labeled at center.)

| Image2 = Gray788.png

| Caption2 = Plan of the facial and intermediate nerves and their communication with other nerves. (Tympanic plexus labeled at center.)

| Innervates =

| BranchFrom = Caroticotympanic nerves, tympanic nerve

| BranchTo =

}}

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).{{Cite book |last=Standring |first=Susan |url=https://www.worldcat.org/oclc/1201341621 |title=Gray's Anatomy: The Anatomical Basis of Clinical Practice |year=2020 |isbn=978-0-7020-7707-4 |edition=42th |location=New York |pages=749 |oclc=1201341621}}

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