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3BHow Your Hearing Works
There is more going on in the ear than just hearing, though that one
activity is amazing in itself. The ear is part of the body’s mechanism of
balance that involves sight, input from the muscles, and the vestibular
system of the inner ear. The vestibular system is the central command
of balance in our bodies, and if things aren’t functioning correctly in this
small part of the inner ear, it can mean big trouble for our whole body.
It’s hard to imagine that an area so tiny could control so much! But, the
inner ear is responsible not only for hearing, but also for maintaining
balance.
The vestibular system
There are three semi-circular canals in the inner ear and these, along
with the utricle and the saccule make up the vestibular system, which
controls balance and gives us a sense of our body’s position.
If you have ever spun around to make yourself dizzy (or watched
someone else do it), you were witnessing this system at work. The fluid
in the semi-circular canals act in response to our movements: in this
case the spinning. When you stopped spinning, the fluid kept spinning
for a moment or two, or longer. If you were spinning for a long time, it
gave you that “off-balance” feeling. You essentially played a trick on
your vestibular system to make yourself dizzy, and your muscles
responded to that trick by functioning incorrectly, and this is what made
it difficult for you to stand or walk. Basically, your vestibular system
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