Crossword chapter 13

5. “record” information to fight pathogen if it comes back.
7. aka Tregs- recognize antigen presented via MHC II or MHC I and express CD4 or CD8, modulate the immune response, including by limiting chronic inflammatory diseases
8. The small accessible part of an antigen that binds to an antigen receptor is called an
9. Are substances that can elicit a response from a B or T cell.
10. Treating a patient with antibodies against a particular pathogen for immediate effect against pathogen. temporary and no memory induction,
11. Actively secrete antibodies.
13. is any immunity obtained by inoculation with selected antigens/parts of a microbe, or in some cases, the entire microbe.
14. Enter the circulation and peripheral lymphoid organs (ie. the spleen and lymph nodes) where they survey for invading pathogens and/or tumor cells.
15. Mature in the bone marrow

1. Thought to use cowpox to prevent smallpox
2. It develops when the innate immune system cannot handle getting rid of the pathogen. It involves a very specific response to a pathogen and is slower to develop than innate immunity. Unlike innate immunity, it can induce memory cells to fight the infection if it comes back.
3. Antibodies are able to bind to pathogens and mark them for elimination.
4. Vaccination- stimulate a primary response and a memory response to a pathogen
6. Mature in the thymus
12. Are the key players of adaptive (acquired) immunity. 20-40% of all leukocytes (WBCs),smallest type of WBC, nucleus is dark and round, contain little cytoplasm