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Unformatted text preview: Hearing EarThree Regions: outer, middle and inner ears- pinna, auditory canal, eardrum- Eardrum receives sound and transmits to three bones in middle ear:- hammer (malleus), anvil (incus), stirrup (stapes)- Stirrup transmits sound waves to inner ear through oval window- Inner ear- cochlea: long coiled tube that contains the Organ of Corti- pressure waves in cochlea influence hair cells - hair cells are receptors- information: transmitted by an action potential to brain via auditory nerve Balance- regulated by semi-circular canals- base of each canal has a cupula a gelatinous structure containing hair (sensory) cells- movement of hair cells communicates information about orientation to the brain Taste and Smell: Taste = molecules in solution; Smell = molecules in air...
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- Fall '07