Immune System

3. Body’s ability to respond to the presence of any foreign substance
5. step in phagocytosis where the pseudopod extends and surrounds the particle
7. clumping together or sticking together of pathogens
8. complex serious of reactions which activate 20 proteins due to pathogen invasion
9. self-proteins which are interpreted by the immune system as non-self antigens
12. this second line of defence response stimulates mast cells and basophils to release histamine
13. group of proteins which are usually inactive in blood but can be activated by triggers
15. Study of the genetic, biological, and physical characteristics of the immune system.
16. transplant between genetically different individuals
17. deliberate action of the body in response to tissue damage
18. molecules on the outer surface of the membrane used to identify self from nonself

1. proteins produced by damaged tissues and WBCs which stimulate immune response
2. breakdown of cell by damage to its membrane
3. these type of dendritic cells are found in the mucosal lining of the GI tract.
4. antigen which causes allergies
6. acronym for major histocompatibility complex
10. proteins which tag pathogens so that white blood cells can destroy them
11. smallest part of an antigen that an antibody can bind to
14. modified monocytes which ingest immunogens and break them down into smaller components.
17. stimulates production of specific antibodies by the immune system