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10 Cards in this Set
- Front
- Back
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Pinna |
Part of the external ear that directs sound waves into the ear canal |
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Tympanic membrane |
Also known as the "ear drum" |
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Malleus, Incus, and Stapes |
"Hammer, Anvil, and Stirrup" |
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Eustachian Tube |
Tube leading from the pharynx to middle ear that equalizes ear pressure and allows mucus to drain out the ear. |
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Cochlea |
"Snail-shaped" structure responsible for perceiving sound |
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Ducts in cochlea |
Vestibular - Top Cochlear - Middle Tympanic - Bottom |
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Organ of Corti |
Organ in cochlea responsible for translating changes in fluid pressure into sound perception |
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Perilymph vs endolymph |
Perilymph - Vestibular and Tympanic ducts, high in Na+ Endolymph - Cochlear duct, high in K+ |
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Semicircular canals |
Detects lateral and vertical head movement |
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Vestibular Apparatus |
Detects head motion and acceleration (includes the semicircular canals) |
