Immunology Final Exam #2

2. Receptor needed to limit or terminate immune responses.
4. Subset/type of effector T cell which acts on B cells.
5. Cytokines secreted by Th2 cells inhibit this. (3 words)
7. Signals generated from these molecules activate transcription factors and play a key role in innate immunity. (3 words)
8. Natural killer cells are a member of this family of cells.
12. Serves as the antigen receptor of B lymphocytes.
16. Antigen-specific T cells that remain long-term after an infection has been eliminated.
17. B cells that are obtained from an animal immunized with an antigen and fused in vitro with myeloma cells. (2 words)
19. Type of immune response for a fast nonspecific response.
20. The rearrangement of gene segments that is mediated by a lymphoid-specific enzyme. (2 words)
22. Immunodeficiency caused by genetic defects.
25. B cells response.
26. Immunodeficincy acquired throughout life.

1. Portion of an antibody responsible for antigen recognition. (2 words)
3. Type of T cell capable of killing cells.
6. Activation means the B & T cells become capable of this.
9. Major interface between the body and the external environment. (2 words)
10. Organ where T cell progenitors migrate to.
11. LFA-1 is this type of molecule.
13. Hormone produced by lymphocytes which is used in communication.
14. Disease caused by the retrovirus HIV
15. Type of T cell involved in the activation of B cells.
18. Subset/type of effector T cell that is induced by microbes that are ingested by phagocytes.
21. Type of immune specific immune response.
23. The interface between an antigen-presenting cell or target and a lymphocyte. (2 words)
24. Polymorphonuclear leukocytes (PMNs).