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3 parts of the ear
Outer ear, middle ear, and inner ear
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Pinna and external auditory canal
Outer ear
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Outer, visible part of the ear. collects sound and channels them into the interior.
Pinna
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Channels sound through the eardrum
Middle ear
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Separates the outer ear from middle, vibrates in response to sound
Eardrum or tympanic membrane
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Connected chain of the 3 smallest bones in the body. Vibrate/transmit sounds to inner ear
Hammer, anvil, and stirrup
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Parts of the inner ear
Oval window, cochlea, and basilar membrane
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Tubular, fluid filled structure
cochlea
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Transmits sound to the cochlea
Oval window
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Lines the inner wall of the cochlea
Basilar membrane
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Hair cells ________ regenerate
Cannot
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Cells lining the basilar membrane; sensory receptors of the ear.
Hair cells. Cilia sprout from teh top of them.
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Jellylike flap that generates impulses interpreted as sound by the brain
tectorial membrane
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Theory stating that each frequency produces vibrations at a particular spot on the basilar membrane
Place theory
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Small electronic device surgically implanted in the ear and head
Cochlear implant
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Theory stating that the perception of a sound's frequency depends on how often the auditory nerve fires
Frequency theory
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Principle which states that a cluster of nerve cells can fire neural impulses in rapid succession, producing a volley of impulses
Volley principle
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Barrier caused by listener's head
Sound shadow
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