the.com/vestibular system
the inner-ear gyroscope that knows you're falling before your eyes admit it.
means a set of fluid-filled canals and sensors in your inner ear that track head position, motion, and balance in real time.
from from latin vestibulum, meaning entrance hall, because these canals sit in the bony antechamber of the inner ear, right before the cochlea.
three canalseach detects rotation on a different axis
seasickness causeeyes and ears disagree about motion
no reststays active and firing even during sleep
spin sicknessfluid keeps moving after you stop, hence dizziness