Print this resource off as a activity or use it as a teaching tool. The site provides viewers with the ins and outs of the human respiratory system. Label diagrams, list the order of the route of air, note the mechanism of breathing, and...

This site features a detailed index of photographs for cardiovascular pathology. You can see what a normal human heart looks like and what a sick one looks like too. Come and check it out.

Younger students learn much about the human eye in this article, which is illustrated with a cross-sectional diagram.