High School

We appreciate your visit to As the frequency increases the place on the membrane that vibrates the most moves from A the base at the end of the cochlea toward. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

As the frequency increases, the place on the membrane that vibrates the most moves from:

A. the base at the end of the cochlea toward the apex at the oval window
B. the apex at the oval window toward the base at the end of the cochlea
C. the apex at the end of the cochlea toward the base at the oval window
D. the base at the oval window toward the apex at the end of the cochlea

Answer :

The place on the cochlear membrane that vibrates the most moves from the apex at the end of the cochlea toward the base at the oval window as the frequency of the sound increases.Hence, option c. the apex at the end of the cochlea toward the base at the oval window is the correct answer.

The cochlea in the human ear is a fluid-filled organ that contains the basilar membrane, which is pivotal in the process of hearing. This membrane varies in width and stiffness along its length, with the base near the oval window being stiffer and narrower, optimal for vibrating in response to higher frequencies.

Conversely, the apex of the cochlea is less stiff and broader, responding best to lower frequencies. This tonotopic organization of the basilar membrane ensures that different sound frequencies cause distinct parts of the membrane to vibrate. High-frequency sounds cause vibrations near the base, while low-frequency sounds move the apex region. This mechanism is comparable to the distinct sounds different keys produce on a piano.

As an educational visualization, a hypothetical unrolling of the cochlea would illustrate the basilar membrane functioning similarly to a backwards piano, with high to low pitches corresponding from base to apex, respectively. The increase in frequency would therefore shift the maximum membrane vibration point from the wider, less stiff apex towards the narrow, stiffer base, opposite the direction sound travels through the cochlea.Hence, option c. the apex at the end of the cochlea toward the base at the oval window is the correct answer.

Thanks for taking the time to read As the frequency increases the place on the membrane that vibrates the most moves from A the base at the end of the cochlea toward. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada