The Ear And Hearing Loss


The ear is the organ of hearing and balance in vertebrates. The ear
converts sound waves in the air, to nerve impulses which are sent to the brain,
where the brain interprets them as sounds instead of vibrations. The innermost
part of the ear maintains equilibrium or balance. The vestibular apparatus
contains semicircular canals which in turn balance you. Any movement by the
head, and this apparatus sends a signal to the brain so that your reflex action
is to move your foot to balance you.
The ear in humans consist three parts: The outer, the middle, and the
inner portions. The outer ear, or pinna, is the structure that we call the ear.
It is the skin covered flap of elastic ...

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and
mammals, but the inner ear is present in all vertebrates.
The ear can hear in several different ways. They are volume, pitch, and
tone. Pitch is related to the frequency of the sound wave. The volume depends
on the amplitude or intensity of the sound wave. The greater the frequency, the
higher the pitch. Humans can hear about 30 and 20,000 waves or cycles per
second. High pitch sounds produce more of a trebly sound, while low pitch
sounds produce a rumbling bass sound.
When a person loses these abilities to comprehend sound, it is referred
to as deafness. It can be caused by disease, toxic drugs, trauma, or an
inherited disorder. Those causes can be classified as conductive, sensorineural,
or both.
A conductive hearing loss results from damage to those parts of the ear
which transmit sound vibrations in the air to the fluids of the inner ear. This
type of damage is usually to the eardrum or small bones known as ossicles.
Ossicles conduct sound from the eardrum ...

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The Ear And Hearing Loss. (2007, October 29). Retrieved January 26, 2020, from http://www.essayworld.com/essays/The-Ear-And-Hearing-Loss/73524
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"The Ear And Hearing Loss." Essayworld.com. October 29, 2007. Accessed January 26, 2020. http://www.essayworld.com/essays/The-Ear-And-Hearing-Loss/73524.
"The Ear And Hearing Loss." Essayworld.com. October 29, 2007. Accessed January 26, 2020. http://www.essayworld.com/essays/The-Ear-And-Hearing-Loss/73524.
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PAPER DETAILS
Added: 10/29/2007 08:46:20 PM
Category: Health & Medicine
Type: Premium Paper
Words: 1113
Pages: 5

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