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Ear Structures

BIO 208: A&P - Lab: Chap 8, Ear Structures and Functions

Pinna Collects sound waves
External Auditory Canal Directs sound to the Tympanic Membrane
Tympanic Membrane Eardrum. Very small changes in pressure vibrates the membrane
Malleus When Tympanic Membrane moves the Malleus
Incus Middle ear bone
Stapes Connected to the Cochlea
Oval Window Membrane
Cochlea Has hair cells and fluid called endolymph
Round Window Another membrane that lets the fluid move
Vestibularcochlear Nerve Signals from Cochlea to the brain
Semicircular Canals Important in balance
Auditory Tube Connects ear to throat, it equals out the air pressure
Created by: nke1992