1. Figure 43.0 Specialized lymphocytes attacking a cancer cell

2. Figure 43.1 An overview of the body's defenses

3. Figure 43.2 First-line respiratory defenses

4. Figure 42.15 Differentiation of blood cells

5. Figure 43.4 The human lymphatic system

6. Figure 43.3 Phagocytosis by a macrophage

7. Figure 43.3x Macrophage

8. Figure 43.x1 Anabaena phagocytosed by a human neutrophil

9. Figure 43.5 A simplified view of the inflammatory response

10. Figure 43.10 An overview of the immune responses (Layer 4)

11. Figure 43.8x B lymphocyte

12. Figure 43.8 The development of lymphocytes

13. Figure 43.6 Clonal selection

14. Figure 19.6 DNA rearrangement in the maturation of an immunoglobulin (antibody) gene

15. Figure 43.6 Clonal selection

16. Figure 43.7 Immunological memory

17. Figure 43.9 The interaction of T cells with MHC molecules

18. Figure 43.10 An overview of the immune responses (Layer 4)

19. Figure 43.11 The central role of helper T cells: a closer look

20. Figure 43.12a The functioning of cytotoxic T cells

21. Figure 43.12b A cytotoxic T cell has lysed a cancer cell

22. Figure 43.13 Humoral response to a T-dependent antigen (Layer 3)

23. Figure 43.10 An overview of the immune responses (Layer 1)

24. Figure 43.10 An overview of the immune responses (Layer 2)

25. Figure 43.10 An overview of the immune responses (Layer 3)

26. Figure 43.10 An overview of the immune responses (Layer 4)

27. Figure 43.14 Epitopes (antigenic determinants)

28. Figure 43.15a,b The structure of a typical antibody molecule

29. Figure 43.15c Antibody molecule

30. Table 43.1 The Five Classes of Immunoglobulins

31. Figure 43.16 Effector mechanisms of humoral immunity

32. Figure 43.17 The classical complement pathway, resulting in lysis of a target cell

33. Figure 43.x2 Vaccination

34. Figure 14.10 Multiple alleles for the ABO blood groups

36. Figure 14.10x ABO blood types

37. Figure 43.x3 X-ray of hands with arthritis

38. Figure 43.18 Mast cells, IgE, and the allergic response

39. Figure 43.x4 Alternaria spores, a cause of allergies in humans

40. Figure 43.19 A T cell infected with HIV

41. Figure 43.19x1 HIV on a lymphocyte, detail

42. Figure 43.19x2 HIV budding

43. Figure 43.19x2a T cell infected with HIV

44. Figure 18.7 HIV, a retrovirus

45. Figure 43.20 The stages of HIV infection

46. Figure 43.x5 AIDS posters