The Immune System

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Across
  1. 2. The process of removing waste products from the body (Excretion)
  2. 5. The organ responsible for producing red blood cells (Bone marrow)
  3. 6. A protein that marks pathogens for destruction (Antibody)
  4. 9. The process by which lymphocytes recognize and attack pathogens (Immune response)
  5. 11. A substance that triggers an immune response (Antigen)
  6. 14. A substance that suppresses the immune response (Immunosuppressant)
  7. 15. A molecule produced by the immune system to neutralize pathogens (Antibody)
  8. 16. The organ responsible for filtering lymph (Lymph node)
  9. 18. The hormone that stimulates red blood cell production (Erythropoietin)
  10. 19. The process of reabsorbing useful substances from the filtrate (Reabsorption)
  11. 21. The primary organ of the immune system (Thymus)
  12. 22. A type of white blood cell involved in the immune response (Lymphocyte)
  13. 23. A condition where the immune system overreacts to harmless substances (Allergy)
  14. 24. The organ responsible for filtering blood (Spleen)
  15. 25. A condition where the immune system attacks the body's own cells (Autoimmunity)
  16. 27. A type of white blood cell that helps regulate the immune response (T cell)
  17. 28. A type of white blood cell involved in allergic reactions (Eosinophil)
Down
  1. 1. A condition where the body lacks a properly functioning immune system (Immunodeficiency)
  2. 3. The body's defense against infectious agents (Immune system)
  3. 4. A type of white blood cell that engulfs and digests pathogens (Phagocyte)
  4. 7. The cells that produce antibodies (Plasma cells)
  5. 8. A type of white blood cell involved in inflammation (Neutrophil)
  6. 10. The organ responsible for the production of immune cells (Lymphoid tissue)
  7. 12. The organ responsible for the maturation of T lymphocytes (Thymus)
  8. 13. The process of destroying and removing damaged cells (Apoptosis)
  9. 14. The process of introducing a vaccine to stimulate immunity (Immunization)
  10. 17. The fluid that flows through the lymphatic system (Lymph)
  11. 18. The process of removing metabolic waste from the blood (Excretion)
  12. 20. The substance found in vaccines that stimulates an immune response (Adjuvant)
  13. 26. The first line of defense against pathogens (Skin)