Hello and welcome to the Zero to Finals podcast.

My name is Tom and in this episode I'm going to be talking to you about vestibular

neuronitis.

And you can find written notes on this topic at zero definals.com slash vestibular neuronitis

or in the ear, nose and throat section of the zero

de finals surgery book. So let's get straight into it. Vestibular neuronitis describes inflammation

of the vestibular nerve. This is usually attributed to a viral infection. Let's start by talking

about the pathophysiology.

The inner ear contains the bony labyrinth, which is a complex bony structure that contains fluids

called perilinth and endolymph.

The inner ear is comprised of three parts, the semicircular canals, the vestibule, which is the middle

section of the labyrinth, and the cochlear. The parts of the inner ear that are responsible

for detecting movement of the head are the semicircular canals and the otolith organs. The otolith

organs are the utrical and the sacral

which are found within the vestibule or the middle section of the inner ear.

The semicircular canals detect rotation of the head

and the autolith organs detect gravity and linear acceleration.

So acceleration in a single direction.

The cochlear is responsible for hearing.

The vestibular nerve transmits signals from the vestibular system,

which is the semicircular canals and the vestibule,

to the brain to help with balance.

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