To
understand what happens when hearing is lost, we must know first how the ear
works. Put very simply, your ear is an organ that converts sound waves in the
air into information in your brain and sometimes even emotions. And if there is
a problem with your hearing, you should go for a doctor, or get yourself in
ear hearing aids or axon
hearing aid.
The
ear can perceive sounds from barely audible to very loud sounds, as well as
differentiate the volume and distance and identify the direction of a sound
source very accurately.
It
consists of three parts:
EXTERNAL
EAR
It
consists of the visible part of the ear, also called atrium, and the ear canal.
Sound waves, airborne, are collected and guided through the ear canal to the
eardrum, a flexible membrane and circular vibrates when waves hit it.
THE
MIDDLE EAR
It is
an air-filled space that is separated from the outer ear by the eardrum. In it
we find three tiny bones, known as "bones", called the hammer, anvil
and stirrup. These bones form a bridge from the eardrum to the inner ear, and
vibrate in response to movements of the eardrum, amplify and conduct sound to
the inner ear through the oval window.
INNER
EAR
The inner ear, or cochlea, is shaped like a snail shell and contains
many membranous sections filled with liquid. When the "bones" conduct
sound to the oval window, the fluid moves and stimulates nerve cells in the ear
into the cochlea. These hair cells in turn send electrical impulses through the
auditory nerve to the brain where they are interpreted as sound.
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