The Ear And Hearing Loss Essay

The Ear And Hearing Loss Essay

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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 cartilage, that sticks out from the side
of the head. It acts like a funnel catching sound and sending it to the middle
portion of the ear. The middle portion contains the ear drum and the connection
between the pharynx and the drum, the Eustachian tube. The inner ear contains
the sensory receptors for hearing which are enclosed in a fluid filled chamber
called the cochlea. The outer and middle ears purposes are only to receive and
amplify sound. Those parts ofd the ear are only present in amphibians 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 to the cochlea. They cannot perform
such an action if the eardrum is perforated, if the middle ear cavity is fill...


... middle of paper ...


...lly there may be a school in a hospital.
     Hearing devices are also available. Hearing Aids operate on battery.
They amplify the sound waves that the ear would normally receive. They range
from $500 to $6000.

INTERVIEW

Question: How did you become about this disability? Answer: I was born with a
hearing disability

Q: When we talk, what exactly do you hear? A: The sound volume is lower but no
distortion

Q: Would you consider yourself hard on hearing? A: No, and I say no because I
can hear when I pay attention but when I am not paying attention, it is like I
am in my own world. Also, sometimes, I can see their lips moving which signals
me to listen closely.

Q: Did you ever go for any treatment? A: No, I didn't feel that it was necessary
since it was just a matter of paying attention.

Q: Do you wear any hearing devices? A: No, (same reason as last question)

Q: Was it hard at all to communicate either as a child or as an adult? A: All
the time I face the problem of someone talking to me and I don't even know it.
Once someone mistakenly accused me of ignoring them.

Q: Do you know what your overall score was on an audiometer? A: No, I was never
tested

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