ch 13

2. B cells antibody receptors.
4. Response from antibodies when they bind to pathogens and mark them for elimination.
6. Recognition of traits specific to a particular pathogen, using a vast array of receptors.
8. subset against primarily intracellular pathogens.
10. Y shaped protein molecule with 2 identical heavy and light chains.
11. key players of adaptive (acquired) immunity.Smallest of wbc.
12. subset leading to a humoral response.
15. recognition of traits shared by broad ranges of pathogens, using a small set of receptors.
16. The small accessible part of an antigen that binds to an antigen receptor.

1. substances that can elicit a response from a B or T cell.
3. recognize antigen presented via MHC II or MHC I and express CD4 or CD8. Modulate the immune response, including by limiting chronic inflammatory diseases.
5. recognize antigen presented via MHC II and also express CD4.
7. cells are a subset that contribute to protection at mucosal surfaces.
8. T cell receptors. Bind only to antigen fragments presented on another cell in the context of MHC.
9. Major histocompatibility complex that hosts proteins displaying antigen fragments on the cell surface.
13. recognize antigen presented via MHC I and express CD8. directly destroy cells they recognize, which are often virus-infected cells.
14. is any immunity obtained by inoculation with selected antigens/parts of a microbe, or in some cases, the entire microbe.