Quiz on Sense of Hearing and Transmission of Sound

What is the common name for the tympanic membrane?

• Stapes

• Incus

• Eardrum

• Cochlea

Which muscle keeps the tympanic membrane tensed?

• Incus Muscle

• Malleus Muscle

• Stapedius Muscle

• Tensor Tympani Muscle

What is the function of the ossicular lever system?

• Reduce the movement distance of the malleus

• Increase the movement distance of the malleus

• Reduce the movement distance of the stapes

• Increase the movement distance of the stapes

What is the purpose of impedance matching by the tympanic membrane and ossicular system?

• To decrease the sensitivity to high-frequency sounds

• To protect the cochlea from damaging vibrations

• To increase the sensitivity to low-frequency sounds

• To decrease the force of movement in the cochlea

What is the main function of the attenuation reflex by the tensor tympani and stapedius muscles?

• To increase the sensitivity to high-frequency sounds

• To protect the cochlea from loud sounds

• To amplify low-frequency sounds

• To mask high-frequency sounds

Where are the hair cells located in the cochlea?

• On the tectorial membrane

• On the basilar membrane

• On the stria vascularis

• On the modiolus

What is the function of the stereocilia on the hair cells?

• To detect changes in endocochlear potential

• To amplify sound vibrations

• To secrete endolymph

• To generate nerve impulses

How are differences in sound frequency detected by the auditory system?

• By the resonance principle

• By the volley principle

• By the intensity principle

• By the place principle

What is the endocochlear potential?

• The potential difference between the stria vascularis and modiolus

• The potential difference between the endolymph and perilymph

• The potential difference between the hair cells and nerve fibers

• The potential difference between the basilar membrane and tectorial membrane

How does the ear interpret changes in sound intensity?

• In proportion to the cube root of the actual intensity

• In proportion to the reciprocal of the actual intensity

• In proportion to the square root of the actual intensity

• In proportion to the logarithm of the actual intensity