Immune System

4. General term for viruses or bacteria (when attacking an entity
6. Small secreted proteins released by cells have a specific effect on the interactions and communications between cells.
8. Variant of antibodies that are artificially produced and recognise
9. A cell that engulfs and digests foreign entities
11. Term for an immune response in which an antibody binds to and blocks the activity of an antigen
12. A medically administered attenuated virus/bacteria that trigger an immune response and memory cells
14. Term for blood cells that respond to chemicals released by pathogens and cells during infection.
15. epitope
17. White blood cells

1. Cell division (process)
2. Class of antibodies that include saliva, tears and milk
3. Type of cells that arise from T-cell dependent reactions in the germinal center and are the critical cell type for immune response to re-challenge from an antigen
4. A large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses
5. bind to receptors on helper T cells stimulating rapid mitosis (cell division;proliferation) and bind to receptors on cytoxic T cells and B cells stimulating cell mediated and humoral immunity.
7. Classification of defenses that act immediately or within hours of a pathogen's appearance in the body.
10. serine proteases that trigger programmed cell death
13. If the antigen is recognised by the immune system, B & T _________ happen at the same time.
16. There are two types of specific immune response:Cell-mediated and _______