A UCLA study shows for the first time how microscopic crystals form sound and gravity sensors inside the inner ear. Located at the ends of cilia — tiny cellular hairs in the ear that move and transmit signals — these crystals play an important role in detecting sound, maintaining balance and regulating movement. Dislodged ear crystals are to blame for the most common form of vertigo. Known as benign paroxysmal positional vertigo, the disorder plagues up to 10 percent of people older than 60. (source: newsroom.ucla.edu)
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