Chapter 14 Flashcards
what part of the ear does conductive hearing loss effect?
the outer or middle ears
why is conductive hearing loss is more prevalent than sensorineural in children?
because of the high rates of otitis media in early childhood
what causes sensorineural hearing loss?
outer or inner cell damage in the cochlea
damage to the auditory nerve
why is sensorineural hearing loss is more prevalent than conductive in adults?
because it is the cochlea and auditory nerve that are most readily affected by aging, noise exposure, illness, disease, and injury
Definition of recruitment
a reduced tolerance for loud sounds caused by cochlear damage
Definition of tinnitus
a ringing or buzzing sound in one or both ears
Definition of signal-to-noise ratio (SNR)
hearing loss and loss of speech clarity due to inner hair cell damage
true or false: people with SNR loss require a greater signal intensity than those with normal hearing
true
Cause of neural loss
damage to the auditory nerve
hearing loss goes undetected and/or untreated in more than ____% of adults with hearing loss
75%
Definition of presbycusis
progressive hearing loss that occurs as a result of aging
true or false: presbycusis is more prevalent and severe in women
false - men
what is presbycusis characterized by?
hearing loss in the high frequency range of sounds
what percentage of the population have a hearing loss?
approximately 10%
true or false: incidence of acquired hearing loss increases dramatically with age
true