Uncrossed

Why is the right side of our brain in control of the left side of our body? - The Naked Scientists June 2010 - http://www.thenakedscientists.com/HTML/content/latest-questions/question/2676/

http://my-ms.org/brain_part1.aspx

Why does the left side of the brain control the right side of the body and vice versa What benefit can this possibly bring to efficient brain functioning - http://wiki.answers.com/Q/Why_does_the_left_side_of_the_brain_control_the_right_side_of_the_body_and_vice_versa_What_benefit_can_this_possibly_bring_to_efficient_brain_functioning