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How Tympanic Plexus Is Formed?

Chloe Bennett • • 6 min read
How Tympanic Plexus Is Formed?

In the middle ear, the tympanic plexus is formed on the tympanic promontory by branches of Jacobson's nerve (tympanic branch of the glossopharyngeal nerve

glossopharyngeal nerve
The glossopharyngeal nerve (/ˌɡlɒsoʊfəˈrɪn(d)ʒiəl, -ˌfærənˈdʒiːəl/), known as the ninth cranial nerve (CN IX), is a mixed nerve that carries afferent sensory and efferent motor information. It exits the brainstem out from the sides of the upper medulla, just anterior (closer to the nose) to the vagus nerve.
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) and caroticotympanic nerves originating from the internal carotid artery plexus.

What is a tympanic plexus?

The tympanic plexus is a nerve plexus that is located on the cochlear promontory.

Where does tympanic nerve come from?

Tympanic Branch

The tympanic nerve (or nerve of Jacobson) arises from the glossopharyngeal nerve most often at the level of inferior ganglion and occasionally at a higher level (Donaldson, 1980). The tympanic nerve may arise from two roots, one of which may come from the vagus (Cruveilhier, 1844).

Chloe Bennett
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Chloe Bennett

Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.