2min chapter

TED Radio Hour cover image

Listen Again: Sound And Silence

TED Radio Hour

CHAPTER

How Do Hair Cells Work?

About ten per cent of the populace, that's thirty million people, have significant hearing pubs. To understand why hearing loss is so common, we need tonr and how the ear works. Sound energy hits the ear drum, it moves three little bones in the middle ear, and finally, it causes pressures to change in the spiraling coclia. There are sixteen thousand sensory receptors now they're called hair cells.

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