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Explain how we detect sound. Start with the initial pressure wave hitting your ear drum and...

Explain how we detect sound. Start with the initial pressure wave hitting your ear drum and describing the resulting action potential travelling down the axon.

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When sound waves fall on tympanic membrane, membrane strats to vibrate, this vibration are passed on to ear osscicle, maleus , incus and stapes. They amplify the sound wave by 22 times. When stapes hit on oval window, the liquid present called perilymph is also vibrating. When perilymph vibrates, it affects the basilar membrane and organ of corti . As the basilar membrane vibrates, the streocilia of organ of cotrti gets disoriented in the tectorial membrane. As soon as the position changes, a stimulus is generated and an action potential is generated and move the signal to the brain.

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