Check out this series by Bodybuilding.com
It teaches the very basics of human muscle and skeletal anatomy and give some advice of exercises to target the various muscle groups.
The series starts of with legs which is really great as it is by far the best muscle group to train in order to see growth (also often the most neglected).
Basically these videos visualise the long detailed articles that we read on fitness sites or magazines and makes it more entertaining to learn and educate ourselves in the body's muscle functions.
Ideal for both guys and girls to learn from, the first half will feature Craig and the second half of the series features Jen their female model.