Immune-2

Immune-2 - Biology 111 1 The Immune System If you hit your...

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Biology 111 The Immune System 1. If you hit your head, you soon develop a bump, and the injured area becomes red, hot and tender. These symptoms are all a product of the . .., and they help deal with the injury by 1. intrinsic clotting cascade . .. stop blood flow into the damaged area. 2. complement cascade . .. walling off the damaged area with fibrin so that invading bacteria cannot escape into the blood. 3. complement cascade . .. puncturing the membranes of damaged cells, which allows them to be rapidly replaced by new cells. 4. inflammation response . .. allowing phagocytic cells to reach the injury more rapidly. 2. The bump part of the reaction above is caused by 1. histamine release. 2. release of antibodies. 3. migration of macrophages. 4. "friendly flora" of the skin surface. 3. The inflammation response does not include an increase in 1. capillary permeability. 2. local blood flow. 3. erythrocyte production. 4. phagocytic activity. 4. The lymph nodes often swell when you have an infection because 1. their valves are blocked with bacteria. 2. the nodes secrete salt, become hypertonic, and suck in plasma. 3. macrophages and lymphocytes in the nodes increase in population. 4. muscles in the nodes contract to keep out bacteria. 5. Large numbers of bacteria enter the blood from the food. The liver cells that deftly remove all the bacteria from the hepatic portal system are the . .. cells. 1. Küppfer 2. Langerhans 3. dendritic 4. Lieberkühn 6. Your doctor says that a blood test has disclosed that your population of natural killer cells is unusually high. Uh-oh, you think, that means 1. I have a viral infection or even cancer. 2. my allergies are getting bad again. 3. I have some kind of bacterial infection. 4. my immune system is failing. 7. The basic function of natural killer cells is to 1. phagocytize invading cells. 2. lyse diseased cells. 3. activate other immune cells.
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Immune-2 - Biology 111 1 The Immune System If you hit your...

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