Immune System
Across
- 7. immunity system where the cells do the work.
- 9. region of an antibody that is a unique amino acid sequence.
- 11. cells with long cytoplasmic extensions; develop from precursor cells in the bone marrow.
- 12. responsible for cell-mediated immunity.
- 16. aka innate immunity; provides immediate, general protection against enemies.
- 20. T cell receptor binds too hard, normal cells is marked to be killed.
- 21. stimulates macrophages to destroy host cells that have been infected by viruses.
- 22. blood cell marker determines positive and negative blood type.
- 23. the ability of the vertebrate immune system to distinguish self from nonself.
- 24. diverse group of peptides and proteins that serve as important signaling molecules.
Down
- 1. immunity system where proteins do the work.
- 2. display foreign antigens as well as their own surface proteins.
- 3. granular lymphocytes that are active against tumor cells.
- 4. come later to the infection scene, but stay longer.
- 5. regulate immune responses by suppressing functions of certain T cells.
- 6. aka acquired immunity; highly specific for distinct macromolecules.
- 8. attract, activate, and direct the movement of various immune system cells.
- 10. responsible for antibody-mediated immunity.
- 13. the study of internal defense systems of humans and other animals.
- 14. T cell receptor can fit with MHC.
- 15. respond to infections by viruses or other intracellular parasites.
- 17. first to the infection scene, but lose interest fast.
- 18. an antibody molecule.
- 19. an antibody with ten spots to grab enemies.