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24 Cards in this Set
- Front
- Back
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Resting expiratory level
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•State of equilibrium where P lungs= P atmos
•Occurs after inhalation and just before exhalation •Occurs after exhalation and just before inhalation |
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Tidal Volume
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volume of air inhaled and exhaled during one cycle of respiration
•Volume of air used for speech •Under voluntary control •The larger the lungs the larger the TV |
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Inspiratory reserve volume
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Volume of air that can be inhaled beyond TV if take a “deep breath”
•Used when talking loudly or producing a lengthy utterance or singing •Under voluntary control |
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Expiratory Reserve Volume
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Volume of air the can be exhaled beyond TV id contract abdominal muscles
•Should be used for loud voice, length utterance or singing •Under voluntary control |
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Residual Volume
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air remaining in lungs after maximum exhalation
•Increases with age and size •Not Under voluntary control |
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Vital Capasity
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total amount of air available for all purposes including speech
•VC = Tidal Volume + Inspiratory reserve volume + Expiratory reserve volume •Under voluntary control |
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Constructive interference
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When the two points of compression and rarefaction for each wave combine exactly the same time and the same point in space, the amplitude of the resulting wave with be doubled
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Destructive interference
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point of compression of one wave combines at exactly the point of rarefaction of the other wave, the amplitude of the resulting wave will be decreased
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Sound Waves
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Longitudinal waves of vibration where molecules are displaced by an initial driving force in a linear direction
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Sensoryneural Hearing Loss
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Damage to the inner ear and auditory nerve
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Conductive Hearing Loss
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damage to the outer and middle ear
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Central Loss
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dysfunction or lesion in the central nervous system
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Senory Loss
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Lesion only in the inner ear
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Auditory Processing Disorder
Where would the lesion site be? |
Lesion or dysfunction in the central auditory pathway
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Sensoryneural Hearing Loss
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Damage to the inner ear and auditory nerve
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Conductive Hearing Loss
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damage to the outer and middle ear
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Central Loss
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dysfunction or lesion in the central nervous system
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Senory Loss
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Lesion only in the inner ear
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Auditory Processing Disorder
Where would the lesion site be? |
Lesion or dysfunction in the central auditory pathway
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How are sounds coded in the cochlea
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High pitch sounds are coded in the basal regions
Middle pitch sounds in the middle region Low pitch sounds in the Apex |
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What is the function of the middle ear
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Functions to match the impedance of air and cochlear fluid in transmitting mechanical vibrations to the cochlea
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Dynamic Range
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The decibel range between thresholds and the level at which sounds become uncomfortably loud
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The frequency where most speech sounds occur
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500-5000 Hz
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Crossover does not occur when?
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Sounds are delivered to the ear through air conduction are softer than 40-45 dB HL
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