Immunity

5. White blood cells, including T-cells, B-cells, and natural killer cells, that are central to the immune system's functioning are known as?
7. What disease results when the body’s self-tolerance breaks down?
10. The two types of immunity
14. A condition in which the immune system's ability to fight off infections is compromised.
15. What reactions are the most common allergic responses and typically result in inflammation, difficulty breathing, and a runny nose?
16. Antibodies belong to a group of plasma proteins called?
17. Antigen-presenting cells (APC) include dendrite cells, B cells and "_______"?
18. A lymphocyte that undergoes clonal selection gives rise to two major types of cells in the clone: effector and "________" cells?
19. "________ "selection is the process by which a lymphocyte proliferates(divides) and differentiates (forms more highly specialized cells) in response to a specific antigen.
21. A T-cell becomes activated only if its antigen receptor binds to the foreign antigen (antigen recognition) and at the same time it receives a second stimulating signal, a process known as?

1. Fill in the blank on figure 1
2. What are disease-causing organisms?
3. What cells of a lymphocyte clone carry out immune responses that ultimately result in the destruction or inactivation of the antigen?
4. "___________"memory is due to the presence of long-lasting antibodies and very long-lived lymphocytes that arise during division and differentiation of antigen-stimulated B cells and T cells.
6. What is a nonspecific defensive response of the body to tissue damage?
8. What does the "H" in MHC stand for? (Major "_________" Complex)
9. How many classes are antibodies grouped in?
11. Any substances regarded as foreign is called an"______"?
12. Name the process of becoming immune to a disease through vaccination.
13. What is released in inflamed areas enhances the inflammatory reaction?
20. and "______"?
22. An organ in the chest where T-cells mature and develop.