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Pass through external auditory canal Cause eardrum to vibrate Ear bones transmit, amplify vibrations through middle ear Vibrations pass though oval to fluid in vestibular canal Pressure waves press on membranes separating 2 ducts of cochlea Bulging round window serves as escape valve for pressure Pressure cause movement of basilar membrane Movement stimulates hair cells of organ of Corti by rubbing against overlying tectorial membrane Neural impulses initiated in dendrites of neurons at base of each hair cell Impulses transmitted by cochlear nerve to the brain |
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Ear bones (malleus, incus, stapes) transmit, amplify vibrations through middle ear |
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Vibrations pass though oval window to fluid in vestibular canal |
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Pressure waves press on membranes separating 2 ducts of cochlea |
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Bulging round window serves as escape valve for pressure |
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Pressure cause movement of basilar membrane |
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Movement stimulates hair cells of organ of Corti by rubbing against overlying tectorial membrane |
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Neural impulses initiated in dendrites of neurons at base of each hair cell |
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Impulses transmitted by cochlear nerve to the brain |
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