Outer ear
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Tympanic Membrane
Your ear, from pinna to cochlear nerve is approximately 2-2.5 inches long. Outer Ear: Sound waves are collected by the pinna, funneled down through the ear canal and hits the eardrum (tympanic membrane) causing it to vibrate. Middle Ear: The vibrations from the eardrum send three little bones into action, transferring signals to a spiral-shaped shell/bony covered organ called the cochlea. Inner ear: Tiny hair cells within the cochlea take the sound vibrations and transform them into ele...

































