BIOL 1002 : BIOL 1002 Exam 3
Document Summary
Immune response: what are the mechanisms of defense against disease, how could you prevent yourself from becoming infected with a pathogen, avoid contact, develop resistance, kill the pathogen, nonspecific external barrier, nonspecific internal defenses. Innate immune response: specific internal defenses, adaptive immune response. 36. 1: nonspecific external barriers, barriers that prevent most pathogens from entering the body, structures, skin, cilia, secretions, tears, saliva, mucus; fig. 36. 2: nonspecific internal defenses, collectively calls the innate immune response, white blood cells, chemicals, these responses operate regardless of the exact nature of the pathogen. Innate immune response: white blood cells, engulf foreign particles and or destroy infected cells, chemicals released by damaged cells and proteins released by wbcs trigger inflammation and fever, white blood cells, two major categories, phagocytic leukocytes, macrophages fig. Inflammatory response: tissues become warm, red, swollen, and painful, function, attract phagocytes to infected or injured tissue, promote blood clotting.
