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Lesser petrosal nerve

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Nerve: Lesser petrosal nerve
Gray788
Plan of the facial and intermediate nerves and their communication with other nerves.
Gray782
Mandibular division of trifacial nerve, seen from the middle line. The small figure is an enlarged view of the otic ganglion. (Small petrosal labeled at center top and bottom right.)
Latin nervus petrosus minor
Gray's subject #
Innervates parotid gland
From tympanic plexus
To otic ganglion
MeSH [1]

The lesser petrosal nerve is a root of the otic ganglion. Its fibers are derived from the facial and glossopharyngeal nerve via tympanic plexus. Postsynaptic fibres leaving otic ganglion join auriculotemporal nerve and inervate the parotid gland.

It passes through the foramen ovale

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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 As such, some of the information contained herein may be outdated.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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