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Unformatted text preview: Cones: sense color but less sensitive. Three types (RGB) Hearing Sound waves make the eardrum vibrate, then the small bones in the ear vibrate and the vibrations go through the snail like chochlea which turns them into nerve impulses to the brain. Outer Ear Pinna : visible part of the ear. Collects and focuses sound waves Ear Canal : tube that waves move from pinna to middle ear. Eardrum : thin membrane that separate outer ear from middle ear, transmits sound to ossicles inside middle ear Middle Ear Three bones ( ossicles ): bones that form the linkage between eardrum and cochlea Two muscle tendons Two nerve bundles Inner Ear Cochlea : snail shaped, hollow, conical chamber of bone Hair cells : specialized mechanoreceptors convert the mechanical stimuli into neural information Vestibular Apparatus : determines movement and orientation in space Semicircular canals : sense rotational movements...
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- Spring '08