I think it is cerebrum but im not totally sure so you might want to make sure.
Answer:
I think that would actually be the cerebellum...
Explanation:
"In humans, the cerebellum plays an important role in motor control. 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." -Wikipedia
