Term
| Test results of conduction and sensorioneural problems |
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Definition
Conductive: dB for air would increase and bone would stay the same
Sensorioneural: dB for bone and air would increase |
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Term
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Definition
Base: high frequency and stiff
Apex: high frequency and compliant |
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Term
| Hair cells and nerve impulse |
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Definition
pressure change and hair movement
K+ influx in
Depolarization
Ca+2 influx
NT release to CN VIII |
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Term
| Best frequency and tuning curves |
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Definition
| dB vs. kHz; the dB at a given frequency that will be processed by cochlea |
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Term
| brainstem auditory evoked responses |
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Definition
| clicks are used to test for lesions or dysfunction in CN VIII; measurement of brain activity over time; looking at peaks and time delays |
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Term
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Definition
Rotation of head causes movement of endolymph in opposite direction
Excites ipsilateral side (hairs toward kinocilium) |
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Term
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Definition
| if head rotates in one direction, the eyes rotate in the other; there are 4 ocular nuclei that hair cells send info |
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Term
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Definition
Warm water: nystagmus toward treated side
Cold water: nystagmus toward untreated side |
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