the.com/vestibular system
Inner-ear gyroscope that tells your brain which way is up, often wrongly after tequila
means The sensory apparatus in your inner ear that detects motion, head position, and balance, feeding your brain constant updates on which way is up.
from From Latin 'vestibulum,' meaning entrance hall or chamber — the same word that gives us 'vestibule.' Anatomists borrowed it for the bony, fluid-filled chamber of the inner ear that serves as the antechamber to the cochlea, housing the semicircular canals and otolith organs. 'System' was simply tacked on later to name the whole balance-sensing network, not just the room it lives in.
- location
- three fluid-filled loops in your inner ear
- job
- tracks head rotation and gravity, not sound
- seasickness cause
- eyes and ears disagree about motion
- toddler trick
- spinning overloads it, hence the joyful stumbling