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3. Ear The Organ of Hearing and Balance. 1. 2. Sound waves enter the ear through the auditory canal and then travel through the eardrums, where they are converted to vibrations. Millions of tiny hairs enter in the inner ear’s cochlea
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3 Ear The Organ of Hearing and Balance 1 2 Sound waves enter the ear through the auditory canal and then travel through the eardrums, where they are converted to vibrations. Millions of tiny hairs enter in the inner ear’s cochlea convert the vibrations into electrical nerve signals, which are sent to the brain trough the eustachian tube for processing. 1 Auditory canal 2 Eardrum 3 Cochlea 4 Eustachian 4