Why We Do Not Fall Down
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Balance is controlled in many parts of the brain including the cerebellum.
Your brain finds out about your body position from many sources, including your eyes and the semicircular canals and other chambers in the inner ear
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Proprioceptors are sense receptors in your skin, muscles and joints (see co-ordination).
The semicircular canals are three, tiny, fluid-filled loops in your inner ear (see the ear).
Two chambers called the utricle and saccule are linked to the semicircularcanals.
When you move your head, the fluid in the canals and cavities lags a little, pulling on hair detectors which tell your brain what is happening.
The canals tell you whether you are nodding or shaking your head, and which way you are moving.
The utricle and saccule tell you if you tilt your head or if its movement speeds up or slows down.
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