Unknown Which of the following is directly involved in sound transduction? A Release of neurotransmitter onto the afferent endings of cranial nerve VIII B Shearing motion of the basilar membrane against hair cell stereocilia C Movement of the tectorial membrane resulting in hair cell depolarization D Vibration at the round window via the stapes 💡 Explanation Which of the following is directly involved in sound transduction? ✓ Correct Answer: A. Release of neurotransmitter onto the afferent endings of cranial nerve VIII