2. Fill in the blanks for the process hearing. Sound waves travel down the __________ canal & hit the __________ membrane, causing it to vibrate. The vibrations are transferred to the three ear __________ causing them to vibrate in succession. The vibrations are passed to the coiled __________ as pressure waves. These pressure waves travel to the __________ in the cochlear canal, which consists of __________ cells, whose stereocilia/hairs are embedded within a gelatinous material called the __________ membrane. Vibrations cause the __________ membrane that the hair cells sit upon to move. This causes the __________ to bend & release neurotransmitters. Nerve impulses are then generated by the __________ nerve and transferred to the brain.
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Step 1: Sound waves travel down the external auditory canal and hit the tympanic membrane, causing it to vibrate. Show more…
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Sound waves to nerve impulses Complete the following statements to describe the mechanism by which sound is converted from waves in the outer ear to nerve impulses in the inner ear. Not all choices will be used.
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This is a list of some of the steps in the process of hearing a sound. Put them in cause-and-effect order from first to last. A. K+ channels in the hair cell membranes open B. The incus (ear bone) vibrates C. The hair cell releases neurotransmitter D. Pressure waves pass through the air in the ear canal E. Afferent neurons transmit action potentials through the cochlear nerve F. The hair cell membrane is depolarized G. Pressure waves travel through the fluid in the cochlea H. The tympanic membrane vibrates I. Voltage-gated Ca2+ channels open J. The stapes (ear bone) vibrates K. Stereocilia in hair cells deflect (bend) L. The malleus (ear bone) vibrates M. The oval window vibrates
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What causes vibrations in the fluid in the cochlea? (a) The eardrum pushes against the cochlea. (b) Sound waves push against the cochlea. (c) A bone in the middle ear pushes against the cochlea. (d) The fluid vibrates when something outside the ear vibrates. (e) The fluid does not vibrate—the hair cells vibrate.
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