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3BHow Your Hearing Works
THE OUTER EAR
When we think of our ears, we generally think of the pinnae, which are
the visible protrusions of our ears. Some of us may have large ears,
others small, but they all serve the same function: to collect the sounds
around us and transport them to the inner ear where they are sent as
signals to the brain. The shape of our ears is ingenious—the curves of
the outer ear, which are made up of cartilage, are not simply decorative,
they serve to funnel the sounds in the atmosphere into the ear canal.
The ear is actually much more than what is visible to the eye.
How sound is Made and Carried
To understand the function of the ears, we should take a moment to
discuss how sound is created and how it travels. Sound waves are the
result of vibrations that travel through our atmosphere - basically the
bumping together of particles of matter through the collision of air
particles.
Wherever the vibration is made, the sound will be carried, even in water
or in earth.
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