1. During inflammation, blood vessels ________________________________. 2. The body’s second line of defense consists of nonspecific cellular and _____________________. 3. __________________________________ occurs when an area is fighting off an infection. 4. The body uses specific _________________________________ to fight off antigens. 5. Blood vessels become ______________________________ permeable during inflammation. 6. _____________________________________ is characterized by redness, heat, swelling, and pain. 7. The body’s first line of defense is the ____________________________________. 8. Interferons are __________________________________ that prevent viruses from multiplying. 9. The body’s third line of defense is ______________________________. 10. Fever ________________________________ the body’s metabolism. 11. The immune system is triggered by ____________________________________. 12. _________________________ is another name for an abnormally intense reation to allergens. 13. _________________________ are when the body attacks its own tissue. 14. ____________________________ destroy pathogens that break through the first line of defense. 15. Natural killer cells are __________________________________. 16. Fever causes defensive and repair functions to occur __________________________________. 17. Infections are ______________________________ in organ transplants. 18. Rheumatoid arthritis & MS are examples of __________________________________. 19. AIDS is an example of a/an _______________________________________________. 20. The lymphoid organs are made up of ________________________________________. 21. Lymph starts out as _____________________ and leaks out as interstitial fluid before becoming lymph. 22. The flow of lymph is controlled by _______________________________________. 23. The flow of lymph is _________________________________. 24. The lymphatic fluid comes from __________________________________. 25. Lymphatic vessels contain one-way valves to prevent _______________________________. 26. The lymphatic capillaries are ____________________________________. 27. The lymphatic system carries the lymph fluid _______________________________. 28. Lymph returns to the blood via the ______________________ and ______________________ veins. 29. Lymph travels ____________________________ through the lymphatic system. 30. Lympoid tissue houses macrophages and _______________________________. 31. T cells and B cells are types of ________________________________. 32. The _____________________________ destroys old red blood cells and pathogens in the blood. 33. The _______________________________ remove pathogens in the respiratory and digestive tracts. 34. The lymph nodes are located _____________________________________. 35. Plasma cells, which come from B cells, produce _______________________________. 36. Macrophages are examples of ______________________________ that destroy foreign matter. 37. The job of lymph nodes is to _________________________________. 38. Lymphoid tissue is made up of ________________________________ tissue 39. The lymphatic system _____________________________ spread of pathogens and cancer cells. |