audiology Flashcards
what is audism?
a form of opprressoin against people who are deaf or hard of hearing
whats an example of an aperiodic sound
ocean noise
whats an example of a periodic sound
aaaaa
ossicles incus, stapes, malleus are what? located where?
3 smallest bones in the body located in middle ear
stapedius tendon and tensor tympani muscle are part of the ___ ____ which does what?
acoustic reflex, protects your ears from very high sound levels
what do the semicircular canals do?
control your balance
what does the vestibule do?
detects motion of the head
basilar membrane and organ of corti are contained within
cochlea
what do the hair cells and basilar membrane do
code the frequency of the sound waves that come in/ control sensitivity of sound
does the apex in the cochlea hold the highest or lowest frequencies
lowest
The auditory pathways take impulses from the ___ ___ to the
____
auditory nerve, cortex
outer, middle, inner ear which are conductive mechanism which are sensorineural mechanism
sensorineural mechanism: inner
conductive mechanism: middle, outer
walk through the hearing process
pina, down ear canal, cochlea, auditory nerve, to brain
trying to fit children with hearing devices by what age
6m
what is an otoscopy assesment
looking at outer ear/drum
what is a Tympanometry assesment
,easures eardrum movement
what is an Otoacoustic emissions (OAEs):
- tets function of outer hair cells in cochlea
-how babies are checked for hearing loss
-when our ears hear, they make a sound and OHCs “dance”
what is an Audiometry assesment:
- auditory brainstem test
- play diff frequency sounds, try to find the quietest sound they can hear
conductive hearing loss (part of ear? Temporary, permanent or genetic?)
outer/middle, usually temporary
sensorineural hearing loss: part of ear? Temporary, permanent or genetic?
inner ear/ nerve, usually permanent
mixed hearing loss: part of ear? Temporary, permanent or genetic?
both outer/inner, usually genetic
Degrees of hearing loss: Hard of Hearing or Deaf?
- slight
- mild
- moderate
- moderately
- severe to profound
- profound.
Hard of Hearing:
* slight
* mild
* moderate
* moderately
Deaf:
* severe to profound
* profound
what is the Speech Intelligiility Index
- what percentage of speech is accessible to the listener
- SRT:
speech reception threshold
- SAT:
Speech awareness threshold
in children, nearly ____ of hearing loss is due to avoidable causes that can be prevented
60%
what qualification must you meet to get a Auditory Brainstem Implant
nerve must be absent or not functional
people often get cochlear implants if ___ ____ is not working properly
inner ear
for bone Conduction Heating aids, the sound goes through ___ to ___ ____
bone, inner ear
starting salary of audiologist in BC
80k
what is the capture rate of audiology screens in babies
96-98%
do balance issues corelate to hearing loss
yes
The basilar membrane is organized in terms of frequency: it is a ______ representation.
tonotopic
