Body: Your vestibular system — three semicircular canals in e…

Question

Did you know? Your vestibular system — three semicircular canals in each inner ear — registers acceleration and rotation. That's why you're dizzy after spinning; the fluid in the canals keeps moving when your head stops. Astronauts in zero-G get "space sickness" because their vestibular system can no longer find "up/down".

Accepted Answer

Your vestibular system — three semicircular canals in each inner ear — registers acceleration and rotation. That's why you're dizzy after spinning; the fluid in the canals keeps moving when your head stops. Astronauts in zero-G get "space sickness" because their vestibular system can no longer find "up/down".

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