PRAXIS Audiology Exam Questions and Answers All Correct
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Course
PRAXIS Audiology
Institution
PRAXIS Audiology
PRAXIS Audiology Exam Questions and Answers All Correct
What is sensorineural hearing loss? - Answer-damage to the hair cells of the cochlea or to the acoustic nerve that prevents the brain from receiving the neural impulses of the sound. (tend to speak loudly because they can't hear themselves)
...
PRAXIS Audiology Exam Questions
and Answers All Correct
What is sensorineural hearing loss? - Answer-damage to the hair cells of the cochlea or
to the acoustic nerve that prevents the brain from receiving the neural impulses of the
sound. (tend to speak loudly because they can't hear themselves)
Is sensorineural hearing loss permanent? - Answer-Yes. Can not repair damage hair
cells or the acoustic nerve
What does an audiogram look like for those w/sensorineural HL? - Answer-bone and air
conduction outside of normal limits
What is recruitment? - Answer-It's seen in sensorineural hearing losses. It's a
disproportionate increase in the perceived loudness of sound when it's presented with
linear increases in intensity.
What are some causes of sensorineural HL? - Answer-prenatal causes (drugs, alcohol),
ototoxic drugs-powerful antibiotics, noise, birth defect, viral/bacteria disease, acoustic
neuroma, presbycusis, meniere's disease
Symptoms of Meniere's Disease - Answer-vertigo, hearing loss, sense of fullness in the
ear, tinnitus
What is mixed hearing loss? - Answer-combination of conductive and sensorineural
hearing loss
Causes of mixed hearing loss... - Answer-combination of a sensorineural disorder and
conductive disorder, or a single pathology (advanced otosclerosis or a head injury)
Air conduction is affected more than bone conduction.
What is central auditory processing? - Answer-effectiveness and efficiency with which
central nervous system utilizes auditory information
Peripheral hearing problems: - Answer-result from problems in the outer, middle,or inner
ear (excluding the auditory nerve).
Central auditory disorders refer to: - Answer-Hearing losses due to disrupted sound
transmission between the brain stem and the cerebrum as a result of damage or
malformation. The temporal cortex of the brain may receive incorrect information, or the
person may process information incorrectly. (some do not support this as a valid
diagnostic label)
, People with Central auditory disorders may have ________ ________________
peripheral hearing loss. - Answer-no significant
In the US, _________ out of every 1,000 children are born deaf or hard of hearing. -
Answer-3
What is Audiology? - Answer-the study of hearing, its disorders, and the measurement
and management of those disorders.
The outer ear is composed of: - Answer-pinna and external auditory canal
What is the instrument used to examine the ear in the canal? - Answer-otoscope
The canal ends at the... - Answer-tympanic membrane (eardrum)
What is the purpose of cerumen? - Answer-lubricating and cleansing the canal,
protecting the ear from fungi, bacteria and small insects.
What is the air-filled cavity that is separated from the outer ear by the tympanic
membrane called? - Answer-middle ear
What three bones form the ossicular chain? - Answer-malleus (hammer)
incus
stapes (footplate) - connected to the oval window
What is the purpose of the Eustachian tube? - Answer-Connects the middle ear to the
nasopharynx.
Allows equalization of air pressure so the tympanic membrane does not rupture.
What does the ossicular chain do? - Answer-transmits sounds efficiently w/no distortion
and amplifies incoming sounds by approx. 30 dB before transmitting it into fluids in the
inner ear.
What does the tympanic membrane do? - Answer-separates the outer ear from the
middle ear
vibrates in response to sound
What are two major structures of the inner ear? - Answer-vestibular system and cochlea
What happens in the inner ear? - Answer-energy is converted to electrical impulses,
which stimulate the acoustic nerve.
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