<Tr> <Th> FMA </Th> <Td> 67944 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terms of neuroanatomy (edit on Wikidata) </Td> </Tr> <P> The cerebellum (Latin for "little brain") is a major feature of the hindbrain of all vertebrates . Although usually smaller than the cerebrum, in some animals such as the mormyrid fishes it may be as large as or even larger . In humans, the cerebellum plays an important role in motor control . It may also be involved in some cognitive functions such as attention and language as well as in regulating fear and pleasure responses, but its movement - related functions are the most solidly established . The human cerebellum does not initiate movement, but contributes to coordination, precision, and accurate timing: it receives input from sensory systems of the spinal cord and from other parts of the brain, and integrates these inputs to fine - tune motor activity . Cerebellar damage produces disorders in fine movement, equilibrium, posture, and motor learning in humans . </P> <P> Anatomically, the human cerebellum has the appearance of a separate structure attached to the bottom of the brain, tucked underneath the cerebral hemispheres . Its cortical surface is covered with finely spaced parallel grooves, in striking contrast to the broad irregular convolutions of the cerebral cortex . These parallel grooves conceal the fact that the cerebellar cortex is actually a continuous thin layer of tissue tightly folded in the style of an accordion . Within this thin layer are several types of neurons with a highly regular arrangement, the most important being Purkinje cells and granule cells . This complex neural organization gives rise to a massive signal - processing capability, but almost all of the output from the cerebellar cortex passes through a set of small deep nuclei lying in the white matter interior of the cerebellum . </P>

What is the major function of the cerebellum