Problem
Explain the relationship between host and pathogen. Define a pathogen. What are the differences between innate and adaptive immune response? What are the white blood cells? Give some examples. Are they involved in innate or adaptive immunity? Explain. Remember that the external defense system is a part of the innate immune system. What is the role of the external innate immune system? Make sure to describe both chemical and physical barriers. How do some of our pathogens overcome our external defenses? Describe the internal (2nd line) innate immune system. Give some examples. Explain the role of phagocytosis in the innate immune response. Explain the roles of inflammation in the innate immune response. Also, describe the steps involved in inflammation using the following terms: Heat Redness Mast Cells Histamine Pain Swelling Complement proteins Macrophages How is blood clotting important in innate immunity? What are the defensive proteins, and what is their primary function? What are some of the characteristics of the adaptive immune response? Include the following terms: Macrophages, MHC, antigens, Helper T-cells, cytotoxic T-cells, B-cells, antibodies, memory B, and memory T-cells. Describe the different parts of the lymphatic system. Describe lymphatic vessels, lymph nodules, spleen, tonsils, one-way valves and interstitial.