Which organ is used for hearing?

Which organ is used for hearing?

• A. Eardrum
• B. Vestibule
• C. Semicircular canals
• D. Cochlea

Answer: (D)

Hearing starts with converting sound waves into electrical signals by the inner-ear structure called the cochlea. Sound waves enter the ear and cause the eardrum to vibrate; those vibrations are passed along through the auditory ossicles, which amplify the motion and deliver it to the fluid-filled cochlea. Inside the cochlea, hair cells on the organ of Corti bend in response to fluid motion, translating mechanical energy into neural impulses that travel via the auditory nerve to the brain for interpretation as sound. Structures like the vestibule and semicircular canals belong to the balance system and are not responsible for hearing, while the eardrum initiates the process but is not the organ that hears. So, the organ used for hearing is the cochlea.

Hearing starts with converting sound waves into electrical signals by the inner-ear structure called the cochlea. Sound waves enter the ear and cause the eardrum to vibrate; those vibrations are passed along through the auditory ossicles, which amplify the motion and deliver it to the fluid-filled cochlea. Inside the cochlea, hair cells on the organ of Corti bend in response to fluid motion, translating mechanical energy into neural impulses that travel via the auditory nerve to the brain for interpretation as sound. Structures like the vestibule and semicircular canals belong to the balance system and are not responsible for hearing, while the eardrum initiates the process but is not the organ that hears. So, the organ used for hearing is the cochlea.