CD 674 Midterm Exam Questions With
Correct Answers
Importance |of |Early |Hearing |Detection |& |Intervention |(EHDI)
* |Maximize |linguistic |competency |and |literacy |development |for |children |who |are |Deaf |or |hard
|of |hearing
* |Until |90s, |kids |with |perm |HL |not |usually |diagnosed |until |2/5-3 |yrs; |now |by |2-3 |months |
diagnosed
Audiologist/SLP |role |in |EHDI
AuD: |assessment, |selection |of |aids/assistive |devices, |monitoring |for |changes |in/progression |of |
HL, |dev |rehab |plan, |referrals
SLP: |administer |hearing |screening |to |newborns/toddlers, |aiding |in |IDing |infants |presenting |
with |risk |indicators |for |late |onset |HL, |providing |tx |for |kids |with |communication |delays |from |
HL, |parent |counseling |about |importance |of |hearing |screening |and |follow-up
Joint |Committee |on |Infant |Hearing |(JCIH) |position |statement
1. |hearing |screening |by |1 |month
2. |audiology |diagnosis |by |2 |months
3. |enrollment |in |EI |program |by |3 |months
,Stages |of |embryonic |development
1. |pre-embryonic |(fertilization-3 |wks)
2. |embryonic |(4-8 |wks)
3. |fetal |(9 |wks-term |at |40 |wks)
3 |germ |layers
1. |ectoderm
2. |mesoderm
3. |endoderm
ectoderm
outermost |germ |player; |forms |all |neural |tissue |and |surface |epithelium
mesoderm
middle |germ |layer; |forms |most |connective |tissues |of |body, |muscle, |bone, |cartilage
endoderm
innermost |germ |layer; |forms |organ |of |corti, |& |lining |of |certain |organs |(lining |epithelium |of |GI |
tract, |urogenital, |and |respiratory |tract)
, T/F: |sense |of |hearing |and |structure |of |ear |will |have |contributions |from |ALL |THREE |germ |layers.
true
T/F: |the |auditory |system |develops |from |outside |to |inside.
false; |it |develops |inside |out
Describe |inner |ear |development |(wks |0-9)
1. |otic |placodes |on |sides |of |head
2. |otic |pit
3. |otic |vesicle |(AKA |otocyst; |fluid-filled |sac) |forms |as |pit |continues |moving |into |head
4. |otic |vesicle-->semicircular |canals |(large |triangular |pouch) |and |cochlear |duct |(slender |
flattened |pouch) |wks |5-11
5. |cochlear |pouch |begins |to |coil |in |wk |6; |coils |complete |by |wk |9
Describe |inner |ear |development |(wks |17-34)
* |wk |17-20: |sensory |structures |developing |within |membranous |labyrinth
- |full |# |of |adult |hair |cells |at |17 |wks
- |6 |sensory |structures |(3 |ampullae |of |SCC, |maculae |of |saccule |and |utricle, |organ |of |corti)
* |wk |20: |mature |synaptic |patterns |on |inner |hair |cells; |crude |functional |hearing
* |wk |22-25: |OHC |adult |configuration
* |wk |34: |cochlea |done |growing/developing
Correct Answers
Importance |of |Early |Hearing |Detection |& |Intervention |(EHDI)
* |Maximize |linguistic |competency |and |literacy |development |for |children |who |are |Deaf |or |hard
|of |hearing
* |Until |90s, |kids |with |perm |HL |not |usually |diagnosed |until |2/5-3 |yrs; |now |by |2-3 |months |
diagnosed
Audiologist/SLP |role |in |EHDI
AuD: |assessment, |selection |of |aids/assistive |devices, |monitoring |for |changes |in/progression |of |
HL, |dev |rehab |plan, |referrals
SLP: |administer |hearing |screening |to |newborns/toddlers, |aiding |in |IDing |infants |presenting |
with |risk |indicators |for |late |onset |HL, |providing |tx |for |kids |with |communication |delays |from |
HL, |parent |counseling |about |importance |of |hearing |screening |and |follow-up
Joint |Committee |on |Infant |Hearing |(JCIH) |position |statement
1. |hearing |screening |by |1 |month
2. |audiology |diagnosis |by |2 |months
3. |enrollment |in |EI |program |by |3 |months
,Stages |of |embryonic |development
1. |pre-embryonic |(fertilization-3 |wks)
2. |embryonic |(4-8 |wks)
3. |fetal |(9 |wks-term |at |40 |wks)
3 |germ |layers
1. |ectoderm
2. |mesoderm
3. |endoderm
ectoderm
outermost |germ |player; |forms |all |neural |tissue |and |surface |epithelium
mesoderm
middle |germ |layer; |forms |most |connective |tissues |of |body, |muscle, |bone, |cartilage
endoderm
innermost |germ |layer; |forms |organ |of |corti, |& |lining |of |certain |organs |(lining |epithelium |of |GI |
tract, |urogenital, |and |respiratory |tract)
, T/F: |sense |of |hearing |and |structure |of |ear |will |have |contributions |from |ALL |THREE |germ |layers.
true
T/F: |the |auditory |system |develops |from |outside |to |inside.
false; |it |develops |inside |out
Describe |inner |ear |development |(wks |0-9)
1. |otic |placodes |on |sides |of |head
2. |otic |pit
3. |otic |vesicle |(AKA |otocyst; |fluid-filled |sac) |forms |as |pit |continues |moving |into |head
4. |otic |vesicle-->semicircular |canals |(large |triangular |pouch) |and |cochlear |duct |(slender |
flattened |pouch) |wks |5-11
5. |cochlear |pouch |begins |to |coil |in |wk |6; |coils |complete |by |wk |9
Describe |inner |ear |development |(wks |17-34)
* |wk |17-20: |sensory |structures |developing |within |membranous |labyrinth
- |full |# |of |adult |hair |cells |at |17 |wks
- |6 |sensory |structures |(3 |ampullae |of |SCC, |maculae |of |saccule |and |utricle, |organ |of |corti)
* |wk |20: |mature |synaptic |patterns |on |inner |hair |cells; |crude |functional |hearing
* |wk |22-25: |OHC |adult |configuration
* |wk |34: |cochlea |done |growing/developing
