Download nastya medical - Rush Arts Physics

By: Anastasiya Romanchukevych
Identify the parts of the human
ear and explain how each part
contributes to how humans
hear.
EAR STRUCTURE
Identify and explain the
different types of hearing loss.
Explain how hearing aids work.
Conductive Hearing Loss
 Conductive hearing loss occurs when sound is not
conducted efficiently through the outer ear canal to
the eardrum and the tiny bones of the middle ear.
Conductive hearing loss usually involves a reduction in
sound level or the ability to hear faint sounds. This
type of hearing loss can often be corrected medically
or surgically.
Possible causes
 Fluid in the middle ear from colds
 Ear infection
 Allergies
 Perforated eardrum
 Benign tumors
 Impacted earwax
 Infection in the ear canal
Sensorineural Hearing Loss
SNHL occurs when there is damage to the inner ear
(cochlea), or to the nerve pathways from the inner ear
to the brain. Most of the time, SNHL cannot be
medically or surgically corrected. This is the most
common type of permanent hearing loss.
Possible causes
 Illnesses
 Drugs that are toxic to hearing
 Hearing loss that runs in the family (genetic or
hereditary)
 Aging
 Head trauma
 Malformation of the inner ear
 Exposure to loud noise
 Sometimes a conductive hearing loss occurs in
combination with a Sensorineual hearing loss (SNHL).
In other words, there may be damage in the outer
or middle ear and in the inner ear (cochlea) or
auditory nerve. When this occurs, the hearing loss is
referred to as a mixed hearing loss.
Identify possible causes of
Beethoven becoming deaf based
on current medical research.
 He was not always deaf but he started going deaf in his late 20s.
At this stage, the deafness began to be manifested in the
constant ringing in his ears (tinnitus) which eventually became
"intolerable", in Beethoven's own words. All the music of his late
period was composed when he was totally deaf, which is
incredible.
 There are also various theories circulating today regarding
Beethoven’s health and hearing loss. It has been suggested that
Beethoven was suffering from Syphilis or that he was poisoned.
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 What is coonductive hearing loss?
 Name tree possible causes.
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 What is sensorineural hearing loss?
 Name tree possible causes.
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 How did Beethoven become deaf?