<Tr> <Td_colspan="2"> Anatomical terms of neuroanatomy (edit on Wikidata) </Td> </Tr> <P> The cerebrum is a large part of the brain containing the cerebral cortex (of the two cerebral hemispheres), as well as several subcortical structures, including the hippocampus, basal ganglia, and olfactory bulb . In the human brain, the cerebrum is the uppermost region of the central nervous system . The prosencephalon is the embryonic structure from which the cerebrum develops prenatally . In mammals, the dorsal telencephalon, or pallium, develops into the cerebral cortex, and the ventral telencephalon, or subpallium, becomes the basal ganglia . The cerebrum is also divided into approximately symmetric left and right cerebral hemispheres . </P> <P> With the assistance of the cerebellum, the cerebrum controls all voluntary actions in the body . </P> <P> The cerebrum is the largest part of the brain . Depending upon the position of the animal it lies either in front or on top of the brainstem . In humans, the cerebrum is the largest and best - developed of the five major divisions of the brain . </P>

What is the specific activity of the cerebrum