A&P Hearing Problems Outer ear

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7 Terms

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What are the parts of the peripheral auditory system?

Outer ear, middle ear, inner ear

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Outer ear consists of…

Pinna and external auditory canal

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Pinna

Comprised of skin and cartilage

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external auditory canal

Stretches from Pinna to Tympanic membrane

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Function of Pinna

Sound enhancement, localize the direction of sound source

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Function of the external auditory canal

Channel acoustic energy to the eardrum, produce cerumen, protect eardrum, serve a resonator

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Resonant Frequency

343/4L