Vibrations of the , located within the , bend stereocilia in...

Vibrations of the _____, located within the _____, bend stereocilia in the hair cells of the mammalian ear and activate sensory neurons. a. tympanic membrane, cochlear duct b. round window, middle ear c. basilar membrane, organ of Corti d. ossicle, outer ear e. ampulla, semicircular canals

Vibrations of the _____, located within the _____, bend stereocilia in the hair cells of the mammalian ear and activate sensory neurons.
a. tympanic membrane, cochlear duct
b. round window, middle ear
c. basilar membrane, organ of Corti
d. ossicle, outer ear
e. ampulla, semicircular canals

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Key Concepts

Auditory Transduction

Auditory transduction is the process by which sound waves are converted into electrical signals in the inner ear. This process involves the vibration of the basilar membrane, activation of the hair cells in the organ of Corti, and subsequent transmission of neural signals to the brain for sound perception.

Hair Cells and Stereocilia

Hair cells are the sensory receptors in the auditory system, and their stereocilia are tiny, hair-like structures. When these stereocilia are bent by mechanical vibrations, ion channels open to trigger electrical impulses, initiating the process of auditory transduction.

Basilar Membrane

The basilar membrane is a flexible structure located inside the cochlea of the inner ear. It vibrates in response to sound waves and its mechanical properties vary along its length, enabling it to separate different sound frequencies through a process known as tonotopic organization.

Organ of Corti

The organ of Corti is the sensory organ situated atop the basilar membrane within the cochlea. It contains specialized hair cells that have bundles of stereocilia, which are deflected by the vibrations of the basilar membrane, thereby converting mechanical energy into neural signals.

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