What does the immune system do, how does it work with other systems, and what problems might occur with it? These facts are highlighted.

An interactive, self-guided lesson on the function of the human immune system and how medical intervention prevents disease. This lesson has many descriptive animations as well as graphs and diagrams to help with understanding. There is...

Students will be able to describe mechanical, chemical, and biological barriers that keep most pathogens out of the human body.

Discover new knowledge about molecular biology- how molecules fit together as a lock and key. This has given researchers new diagnostic tools that use immune cells from mice to produce antibodies to detect a specific virus or bacterium.

Read a passage about our immune system and answer the follow-up questions.

[Free Registration/Login may be required to access all resource tools.] Discusses immunity and the differences between active and passive immunity.

[Free Registration/Login may be required to access all resource tools.] Covers the role of the lymphatic system in the immune response.

Explore the structure and function of the lymphatic system.

This site from the PBS production, Scientific American Frontier "Never Say Die", includes a section entitled "The Clock of Life". It provides a discussion of cell death through shortening of the telomere. A good class activity included.

Having achy joints and fatigue may seem like complaints of an elderly individual. Life with Lupus, however, can cause such conditions in a teenager. Learn more about the condition in this article and the links to related sites.

This site from the MayoClinic.com contains great information on the food allergy. The sections that are covered in the article include: signs and symptoms, causes, risk factors, screening, diagnosis, treatment and prevention.