Coordination in humans

http://www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway/understanding_organisms/nervous_systemrev5.shtml


http://www.bbc.co.uk/schools/gcsebitesize/science/21c_pre_2011/evolution/evolutionhormonenervousrev2.shtml

http://www.bbc.co.uk/science/humanbody/body/factfiles/nervous_anatomy.shtml


http://www.bbc.co.uk/education/guides/z4khvcw/revision/1