THE IMMUNE RESPONSE

Animated graphics illustrate a fairly technical overview of the three levels of the immune response. The first level comprises skin, mucus membranes, natural secretions, and natural flora. The second level comprises protein-based responses (cytokines, interferons, and complement proteins) and cell-based responses (natural killer cells; phagocytes including eosinophils, neutrophils, and monocytes; and inflammation; clotting; and fever). These levels are said to be general defenses, while the third level identifies and fights specific pathogens through cell-based responses (T cells) and humoral immunity (B cells). An online teacher’s guide supplies student activity handouts. Grades 9–12. Color. 21 minutes. VEA (Video Education America). ©2011.

Teacher’s guide

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