Hearing
The sense that perceives vibrations in air or water as sound. The eardrum collects the vibrations and hair cells in the cochlea convert them into nerve signals sent to the brain.
People with superior canal dehiscence syndrome can have a striking hearing symptom: they hear their own eyeballs moving and even their heartbeat inside their head. A thinned or missing patch of bone over the inner ear's balance canal lets sound and pressure leak straight into it.
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