The Senses: Hearing

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BIOL 2010 Human Anatomy Physiology I
The Senses Hearing
______ collects sound waves _____ ______
_______ (canal) channels sound waves __________
______ _________ conduct sound waves
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The Senses Hearing
The ____ _______ transfers sound waves to the
liquid inside the _______ Three _____________
________ (cochlear duct)________
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The Senses Hearing
Sound waves vibrate basilar membrane causing
________ __ ________
Bending causes ____________ in hair cells that in
turn create action potentials in synapsing neurons
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The Senses Hearing
Basilar membrane stiff near vestibule, responds
to ______ ________ ______ (20,000 Hz). ______
_______ picked up further in to cochlear duct,
with lowest frequencies (200 Hz) at apex
Excess wave energy travels back down via _____
________ and out _______ __________
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The Senses Balance
______ __________ Responds to force of ________
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The Senses Hearing
________ _________ Responds to movement of
____________ (fluid) in _________ _______