How does the brain control and execute movement? A rather crude summary of motor function would first describe the prefrontal cortex area of the brain as key to planning movement. Moving onward through the brain the premotor cortex prepares and organises the movement. The basal ganglia selects the appropriate movement, the cerebellum coordinates the timing of the movement and finally the primary motor cortex recruits the muscles to execute the movement.
http://www.google.co.uk/search?q=image+of+motor+brain+areas&hl=en&client=safari&tbo=u&tbm=isch&source=univ&sa=X&ei=qOnjTo3TBsHg8gOo8NGYBA&ved=0CDQQsAQ&biw=1024&bih=690
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