Immunology Crossword

2. Serves as the antigen receptor of B lymphocytes.
3. Regulator of complement activation which cleaves C3b. (2 words)
7. Antigen-specific T cells that remain long-term after an infection has been eliminated.
8. Type of immune response for a fast nonspecific response.
9. B cells response.
11. Type of Class II MHC expressing APC responsible for priming. (2 words)
14. LFA-1 is this type of molecule.
15. Unresponsiveness of the adaptive immune system to antigens. (2 words)
16. Subset/type of effector T cell which acts on B cells.
17. What event occurs only within germinal centers?(2 words)
18. Activation means the B & T cells become capable of this.
21. The rearrangement of gene segments that is mediated by a lymphoid-specific enzyme. (2 words)
23. The receptors that are needed to limit or terminate immune responses.
24. Polymorphonuclear leukocytes (PMNs).

1. The hormone produced by lymphocytes which are used in communication.
4. The portion of an antibody that is responsible for antigen recognition. (2 words)
5. Type of immune-specific immune response.
6. Natural killer cells are a member of this family of cells.
7. B cells that are obtained from an animal immunized with an antigen and fused in vitro with myeloma cells. (2 words)
10. barrier The major interface between the body and the external environment. (2 words)
12. Type of T cell capable of killing cells.
13. Type of antigen recognized in T-dependent antibody responses.
19. The interface between an antigen-presenting cell or target and a lymphocyte. (2 words)
20. Type of T cell involved in the activation of B cells.
22. The organ where T cell progenitors migrate to.