Hearing and the Structure of the Ear Answers

The minimum detectable sound for normal hearing is arbitrarily set at _____ decibels. A.5B.10C.25D.0

The __________ sends sound vibrations to the inner ear. A.malleus B.stapes C.incus D.tympanum

Ear wax, which is produced in the external auditory canal, contains chemicals that guard the ear from infections.

Cochlear implants are surgically implanted electronic devices that send __________. A.electronic signals to the auditory nerve for processingB.sound vibrations to the cochlea for transduction C.sound vibrations to the ossicles in the middle earD.electronic signals about sound waves to the brain

Scientific research shows that birds are capable of regenerating their hair cells.

Audition is another word for being able to see.

Georg Von Békésy won a Nobel Prize for his research on the basilar membrane, which showed that it contains a(n) __________ wave. A.auditory B.coiled, fluid-filled C.isometric D.traveling

Which of the following statements about the debate over cochlear implants is true? A. Many in the deaf community view deafness as a disability that should be treated or cured. B. Supporters of the cochlear implants believe that this technology will devalue people who are deaf. C. Many opponents of the cochlear implants view deafness as a cultural identity of which to be proud. D. Many supporters believe that cochlear implants lead children to have a poor self-image. Please select the best answer from the choices provided

Sound waves are detected by the pinna, or the outer part of the ear.

The outer ear channels sound waves down the external __________ to the __________, a tight membrane that vibrates in response to sound waves. A.auditory canal . . . oval windowB.pinna . . . eardrum C.auditory canal . . . eardrum D.pinna . . . cochlea