Hi, Josh,
I really loved this one. I can still remember an even older way of showing young people how the human body works. The early 20th century not-quite encyclopedia, The Book of Knowledge (20 volumes, in my Dad's parents' home) featured drawings of the actual anatomy, but also fanciful analogies of the body as a house, with many rooms. I loved seeing what people used to think.
This video is really impressive, on its own, but I know kids fell asleep to it, while autistic nerds like me soaked it all up. So once again, you're doing a great service for people everywhere, turning videos like this into actually effective education. Laugh and learn, kids.! :)