The Transduction of Sound Waves into Action Potentials by the Human

question 3

Multiple Choice

The transduction of sound waves into action potentials by the human ear takes

• A) as the basilar membrane becomes more permeable to sodium ions and depolarizes, initiating an action potential in a sensory neuron.
• B) within the middle ear as the vibrations are amplified by the malleus, incus, and stapes.
• C) as the basilar membrane vibrates at different frequencies in response to the varying volume of sounds.
• D) when hair cells are bent against the tectorial membrane, causing them to depolarize and release neurotransmitter that stimulates sensory neurons.
• E) within the tectorial membrane as it is stimulated by the hair cells.

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