Describe the phenomenon of clonal selection as it pertains to B lymphocytes. Make sure to mention MEMORY, DIVERSITY and why the response is considered to be ACQUIRED.

Which of the following cells would be most active in early, anti vital immune responses the first time one is exposed to pathogen? macrophage Tcell neutrophil natural killer cell

5. Explain a function for each of the types of T cells (Tн, Тс, ТR).

1.     Describe the importance of T-cells for good health. Key terms: MHC, activation, apoptosis, autoimmune disorders

6. Describe what prompts a cell to produce interferon and the effects interferon has on the infected cell as well as surrounding cells.

1. What physical barrier and non-specific defenses help to prevent infection? How is a "non- specific" defense different from a "specific" defense? 2. Non-specific immunity is also called_immunity while specific immunity is called 3. Describe the roles of complement proteins, cilia (in lungs), natural killer cells and phagocytes. How are these non-specific defenses? 4. Describe the inflammatory response. Describe how this happens. 5. How is the immune system (and inflammation) related to allergies? 6. What is an antigen? How does your immune system recognize it? 7. What is an antibody? 8. Know the difference between B cells, killer T cells, and helper T cells. What do they do? Where are they produced, what type of immunity they provide, how do they kill foreign organisms. 9. Describe how the immune system responds to an infection..basically know how a B cell is activated and how it makes antibodies. 10. What is the difference between a primary and a secondary immune response? 11. What…

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4. Three major activation pathways of the complement system. Bridging the innate vs adaptive immunity.

3. Discuss the effect of the following physiological changes on the effectiveness of the body’s immune response: a. Taking antacids on a regular basis. b. Changes caused by smoking in the cilia in the respiratory epithelium c. Cut or abrasion in the skin. 2. Explain how the body tries to prevent pathogenic entry into the body 2.3. Evaluate factors that affect the efficiency of the body’s first line of defence

1. Explain the difference between Innate and Adaptive Immunity?