The document summarizes the inputs, circuits, and outputs of the cerebellum in 3 parts: 1) The main inputs to the cerebellum come from the cerebral cortex, spinal cord, and vestibular system via several tracts. 2) Within the cerebellum, there are circuits between the mossy fibers, climbing fibers, Purkinje cells, deep nuclei, and other areas that process information. 3) The outputs from the cerebellum influence motor control and are sent to various areas like the spinal cord, brainstem, thalamus, and motor cortex via different tracts.