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The cerebellum is a region of the brain that plays an important role in the integration of sensory perception and motor output.

Many neural pathways link the cerebellum with the motor cortex, which sends information to the muscles causing them to move, and the spinocerebellar tract, which provides feedback on the position of the body in space (proprioception).

The cerebellum integrates these pathways, using the constant feedback on body position to fine-tune motor movements.

Note:   The above text is excerpted from the Wikipedia article "Cerebellum", which has been released under the GNU Free Documentation License.
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