The cerebellum, or \u201clittle brain,\u201d refines your body\u2019s functions through tasks like balance, coordination, posture, and motor learning. Essentially, the cerebellum does not initiate movement, but manages it.\nLocated at the base of the brain between the cerebral cortex and pons, this \u201clittle brain\u201d is believed to also control cognitive functions like attention and language, and the regulation of fear and pleasure responses.\nHow Does the Cerebellum Work?\nThe cerebellum receives information from the sensory systems, spinal cord, and other parts of the brain, and uses it to coordinate movements.\nCan You Live Without the Cerebellum?\nYes; rare conditions such as cerebellar hypoplasia and cerebellar agenesis result in a smaller or nonexistent cerebellum.\nWhat is cerebellar hypoplasia?\nCerebellar hypoplasia is an embryonic disorder that leads to a diminished or missing cerebellum. The condition may be genetic, or it can occur from external influences such as:\n\nDrugs\nChemicals\nInfections\nStroke\n\nIt is sometimes associated with other disorders including Dandy-Walker syndrome, Walker-Warburg syndrome, CASK Gene Mutation and spinal muscular atrophy.\nWhat is cerebellar agenesis?\nThere have been a total of ten cases of cerebellar agenesis, a rare condition where the brain develops without a cerebellum. The patients are still mobile because movement is actually handled by the motor cortex, but lack the poise provided by the cerebellum. The condition is usually discovered post-mortem because the rest of the brain compensates to mask the lack of a cerebellum. The disadvantages include developmental delays, language deficits and neurological abnormalities, but often cerebellar agenesis patients\u2019 movements improve with age.\nInterested in learning more about how the brain functions? Check out our Get to Know The Parts of Your Brain article!