for Emily and Morgan :)

10 minute tutorial on cortex and parts
http://www.youtube.com/watch?v=sakaeaNbHVY&safety_mode=true&persist_safety_mode=1&safe=active
parts of neuron
http://www.youtube.com/watch?v=aYu31Yml0gk&feature=related&safety_mode=true&persist_safety_mode=1&safe=active

overview of all systems! 25 min!
http://www.youtube.com/watch?v=vWJ2F4RSSO8&feature=related&safety_mode=true&persist_safety_mode=1&safe=active