Audiology PRAXIS Questions And
Answers With Verified Study Solutions
| Newest Exam | Verified Answers |
Just Released 2025
Inverse Square Law - ANSW-as the distance from a sound source doubles, the sound's
intensity reduces by half the SPL when no obstruction is present (drop of 6 dB)
What is the relationship between fundamental frequencies and harmonics? - ANSW-
F0= lowest freq component of a complex periodic sound; harmonic is a regular and
repeating multiple of the f0
In which frequencies and at what intensities are most speech sounds produced? -
ANSW-30-3000 Hz, 55-65 dB
Define threshold - ANSW-the faintest sound where hearing is audible
What is the relationship between sound pressure level (SPL) and hearing level (HL)? -
ANSW-SPL= used as output in transducers during audiometric testing (calibrated in
SPL)
HL= used on audiometer dial, normalized SPL scale to zero
--closest relationship in med freq and largest in low and high
Describe embryology and the development of the hearing and balance mechanisms -
ANSW-otic vesicle forms week 3, auditory placode turns into otic pit. week 4 brachial
arches form (tensor tympani, stapedius). Week 6 auricle forms from hillock, TM forms;
ossification of stapes occurs after birth
Normal processes of auditory behavior over the lifespan - ANSW-27wks utero: sound
awareness
6 mo: babbling until now not affected
Language and speech characteristics and development over the lifespan - ANSW-0-2
years: oral language and native sound system
2-3: produce speech in response to written marks made
3-6: intention, context, social
8: spelling, independence in reading
9: less attention to decoding for meaning
What are the effects of hearing loss on language and speech? - ANSW-effect of
perception (distortion, recruitment, temporal resolution), phonetic features (voicing
duration frication place)
What are the effects of hearing loss on educational, vocational, social, and
psychological functioning? - ANSW-employer resistance to hiring person with HL (more
likely to be unemployed), educational deficits with HL due to inability to understand
lecturer, social isolation and depression, lower education level, loneliness, stress,
reduced physical health
Describe the function of each of the three major parts of the hearing mechanism -
ANSW-outer ear: collects HF, increases sound pressure to EC, binaural summation,
localization
, middle: ratio of malleus to incus, size difference of TM to oval window, impedance
matching
inner: tonotopicity of BM and VIIIn; SOC localization and freq analysis; tectorial
membrane displacement, HC innervation
what is the function of hair cells (outer and inner)? - ANSW-IHC: afferently innervated
(95%)
OHC: efferently innervated
What are the fluids found in the labyrinths of the inner ear? - ANSW-perilymph is in
scala vestibili and tympani. endolymph in media.
Endolymph in semicircular canals.
what impacts can hearing loss cause for learning in children? - ANSW-Delay in speech
and language, reduced academic achievement and vocabulary, social isolation and
poor self-concept, vocational choices
Describe the differences in speech and language development between pre- and post
lingually deafened children. - ANSW-pre lingual- deafened before they learn speech
post lingua- deafened after they learn speech (about age 6)
-effects are not as severe for post lingually deafened children; need to implant/amplify
immediately for prelingual
What impacts can hearing loss cause for adults (ex: social isolation)? - ANSW-fatigue,
depression, social withdraw, impaired memory, reduced quality of life, headaches,
increased stress and blood pressure
Nongenetically caused congenital HL - ANSW-TORCH: toxoplasmosis, rubella, CMV,
herpes
CMV: intrauterine infection
viral exposure (syphilis, herpes simplex)
Genetically caused non syndromic HL - ANSW-connexin 26, connexin 30
genetically caused syndromic HL - ANSW-waardenburg (white forelock, upturned nose,
facial anomalies, congenital SNHL) Usher (vision loss, HL); pended (thyroid goiter,
EVA) jervell and lange-nielsen (profound HL, irregular heartbeat, fainting, sudden death)
What are the etiologies of hearing loss present at birth? - ANSW-congenital (can be
syndromic or nonsyndromic)
What are the types of presbycusis? What parts of the hearing system are implicated in
the different types and what are the effects on hearing? - ANSW-Schuknecht's four
types of presbycusis:
1. Sensory
2. Neural
3. Metabolic (atrophy of stria vascularis)
4. Mechanical (stiffening BM)
Why does fluid accumulate behind the TM in the middle ear space during otitis media? -
ANSW--eardrum is normally lined with mucus
-bacteria travels to middle ear from E tube from build up, which is why AOM develops
during/after flu
Name the condition associated with bony growth surrounding the bones of the middle
ear and describe the type of hearing loss that accompanies it. - ANSW-otosclerosis
Which commonly used pharmaceuticals can affect balance? Which are ototoxic? -
ANSW-antidepressants, antihistamines, blood pressure, pain relievers, dizziness
Answers With Verified Study Solutions
| Newest Exam | Verified Answers |
Just Released 2025
Inverse Square Law - ANSW-as the distance from a sound source doubles, the sound's
intensity reduces by half the SPL when no obstruction is present (drop of 6 dB)
What is the relationship between fundamental frequencies and harmonics? - ANSW-
F0= lowest freq component of a complex periodic sound; harmonic is a regular and
repeating multiple of the f0
In which frequencies and at what intensities are most speech sounds produced? -
ANSW-30-3000 Hz, 55-65 dB
Define threshold - ANSW-the faintest sound where hearing is audible
What is the relationship between sound pressure level (SPL) and hearing level (HL)? -
ANSW-SPL= used as output in transducers during audiometric testing (calibrated in
SPL)
HL= used on audiometer dial, normalized SPL scale to zero
--closest relationship in med freq and largest in low and high
Describe embryology and the development of the hearing and balance mechanisms -
ANSW-otic vesicle forms week 3, auditory placode turns into otic pit. week 4 brachial
arches form (tensor tympani, stapedius). Week 6 auricle forms from hillock, TM forms;
ossification of stapes occurs after birth
Normal processes of auditory behavior over the lifespan - ANSW-27wks utero: sound
awareness
6 mo: babbling until now not affected
Language and speech characteristics and development over the lifespan - ANSW-0-2
years: oral language and native sound system
2-3: produce speech in response to written marks made
3-6: intention, context, social
8: spelling, independence in reading
9: less attention to decoding for meaning
What are the effects of hearing loss on language and speech? - ANSW-effect of
perception (distortion, recruitment, temporal resolution), phonetic features (voicing
duration frication place)
What are the effects of hearing loss on educational, vocational, social, and
psychological functioning? - ANSW-employer resistance to hiring person with HL (more
likely to be unemployed), educational deficits with HL due to inability to understand
lecturer, social isolation and depression, lower education level, loneliness, stress,
reduced physical health
Describe the function of each of the three major parts of the hearing mechanism -
ANSW-outer ear: collects HF, increases sound pressure to EC, binaural summation,
localization
, middle: ratio of malleus to incus, size difference of TM to oval window, impedance
matching
inner: tonotopicity of BM and VIIIn; SOC localization and freq analysis; tectorial
membrane displacement, HC innervation
what is the function of hair cells (outer and inner)? - ANSW-IHC: afferently innervated
(95%)
OHC: efferently innervated
What are the fluids found in the labyrinths of the inner ear? - ANSW-perilymph is in
scala vestibili and tympani. endolymph in media.
Endolymph in semicircular canals.
what impacts can hearing loss cause for learning in children? - ANSW-Delay in speech
and language, reduced academic achievement and vocabulary, social isolation and
poor self-concept, vocational choices
Describe the differences in speech and language development between pre- and post
lingually deafened children. - ANSW-pre lingual- deafened before they learn speech
post lingua- deafened after they learn speech (about age 6)
-effects are not as severe for post lingually deafened children; need to implant/amplify
immediately for prelingual
What impacts can hearing loss cause for adults (ex: social isolation)? - ANSW-fatigue,
depression, social withdraw, impaired memory, reduced quality of life, headaches,
increased stress and blood pressure
Nongenetically caused congenital HL - ANSW-TORCH: toxoplasmosis, rubella, CMV,
herpes
CMV: intrauterine infection
viral exposure (syphilis, herpes simplex)
Genetically caused non syndromic HL - ANSW-connexin 26, connexin 30
genetically caused syndromic HL - ANSW-waardenburg (white forelock, upturned nose,
facial anomalies, congenital SNHL) Usher (vision loss, HL); pended (thyroid goiter,
EVA) jervell and lange-nielsen (profound HL, irregular heartbeat, fainting, sudden death)
What are the etiologies of hearing loss present at birth? - ANSW-congenital (can be
syndromic or nonsyndromic)
What are the types of presbycusis? What parts of the hearing system are implicated in
the different types and what are the effects on hearing? - ANSW-Schuknecht's four
types of presbycusis:
1. Sensory
2. Neural
3. Metabolic (atrophy of stria vascularis)
4. Mechanical (stiffening BM)
Why does fluid accumulate behind the TM in the middle ear space during otitis media? -
ANSW--eardrum is normally lined with mucus
-bacteria travels to middle ear from E tube from build up, which is why AOM develops
during/after flu
Name the condition associated with bony growth surrounding the bones of the middle
ear and describe the type of hearing loss that accompanies it. - ANSW-otosclerosis
Which commonly used pharmaceuticals can affect balance? Which are ototoxic? -
ANSW-antidepressants, antihistamines, blood pressure, pain relievers, dizziness
