Tympanic nerve
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| Nerve: Tympanic nerve | ||
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| Plan of upper portions of glossopharyngeal, vagus, and accessory nerves. (Tympanic nerve visible in upper right.) | ||
| Latin | n. tympanicus | |
| Gray's | subject #204 910 | |
| Dorlands/Elsevier | n_05/12566985 | |
The Tympanic Nerve (nerve of Jacobson) arises from the petrous ganglion, and ascends to the tympanic cavity through a small canal on the under surface of the petrous portion of the temporal bone on the ridge which separates the carotid canal from the jugular fossa.
In the tympanic cavity it divides into branches which form the tympanic plexus and are contained in grooves upon the surface of the promontory.
This plexus gives off:
- (1) the lesser superficial petrosal nerve;
- (2) a branch to join the greater superficial petrosal nerve; and
- (3) branches to the tympanic cavity.
[edit] Additional images
 Sympathetic connections of the otic and superior cervical ganglia. |
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 As such, some of the information contained herein may be outdated.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.
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