tympanic plexus

Introduction

A plexus on the labyrinth wall of the tympanic cavity.

Origin

• tympanic nerve
• anastomotic branch of the facial nerve
• sympathetic branches from the internal carotid plexus

Innervation

• mucosa of the middle ear, mastoid cells & auditory tube (eustachian tube)
• lesser superficial petrosal nerve to the otic ganglion

More general terms

• plexus

Additional terms

• facial nerve (CN VII)
• internal carotid (sympathetic) plexus
• lesser petrosal nerve
• otic ganglion
• tympanic nerve (Andersh nerve, Jacobson nerve)