Citation, DOI, disclosures and article data
At the time the article was created Chris Rothe had no recorded disclosures.View Chris Rothe's current disclosures
At the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.View Craig Hacking's current disclosures
The tympanic plexus is a nerve plexus that is located on the cochlear promontory.
The tympanic nerve (a branch of the glossopharyngeal cranial nerve) passes through the inferior tympanic canaliculus to emerge on the cochlear promontory of the middle ear, where it then divides into an anterior branch that travels towards the Eustachian tube and a posterior branch that travels towards the round window 1.
The anterior and posterior branches of the tympanic nerve form the tympanic plexus with a small contribution from the sympathetic fibers of the carotid plexus 2.
The tympanic plexus is a highly variable structure with respect to its course, branching and anastomoses, and there is often no bilateral symmetry.
History and etymology
The tympanic plexus has been referred to as the ‘Jacobson anastomosis’ plexus as it was originally described in the early 1800’s by Ludvig Levin Jacobson, a renowned anatomist from Copenhagen for whom the Jacobson nerve is also named 3.
- 1. Goravalingappa R. Cochlear implant electrode insertion: Jacobson's nerve, a useful anatomical landmark. (2002) Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India. 54 (1): 70-3. doi:10.1007/BF02911015 - Pubmed
- 2. Clinical anatomy of the tympanic nerve: A review. (2014) World Journal of Otorhinolaryngology. 4 (4): 17. doi:10.5319/wjo.v4.i4.17
- 3. Lekakis GK. Philipp Friedrich Arnold, Ludvig Levin Jacobson and their contribution to head and neck anatomy. (2003) The Journal of laryngology and otology. 117 (1): 28-31. doi:10.1258/002221503321046603 - Pubmed