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16 Cards in this Set
- Front
- Back
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Conversions of energy in order
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Outer ear -- Middle Ear -- Outer Ear
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Outer ear conversion of energy
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Pinna used to funnel sounds into air
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Middle Ear conversion of energy
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Converts acoustical energy from outer ear to mechanical energy
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Inner Ear conversion of energy
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Transduces mechanical energy to electrical energy
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Function of outer ear
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Protection of deeper structures
Amplifies higher frequency sounds |
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Function of Middle ear
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Compensates for mismatch between air filled outer ear and fluid filled inner ear
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Inner Ear
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Primary function is to transduce mechanical energy to electric energy
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The outer and inner hair cells
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The inner ear
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Peak amplitude
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highest point on graph
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Peak to peak amplitude
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highest point minus lowest point
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Mediums that transmit sound what the following two properties
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Mass & elasticity
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Physical properties of sound
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sound production - physical aspect
sound transmission - physical aspect sound analysis - psychological |
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Areas of increased density of air particles
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Compression
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Areas of decreased density of particles
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Rarefraction
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Sensorineural Hearing Loss
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1. Not correctible by medical treatment.
2. Accounts for 90% of all hearing loss 3. Localized to inner ear |
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Conductive hearing loss
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1. Loss of hearing related to obstruction or disease in outer or middle ear.
2. Accounts for 10% of all hearing loss. 3. Usually correctable by medical intervention. |
