Does clonal selection occur at the site of an infection or elsewhere? Explain. Are there any sites in the body where you expect little or no immune response, even if a dangerous pathogen is present? What do these sites have in common?
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Does clonal selection occur at the site of an infection or elsewhere? Explain. Are there any sites in the body where you expect little or no immune response, even if a dangerous pathogen is present? What do these sites have in common?
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- When referring to immunity, what does the term innate imply? the mechanism will develop based upon exposure to specific pathogens the mechanism will be built-in and present at birth the mechanism will be acquired over an individual's lifetime the mechanism will provide defense against many different types of pathogensWhen referring to immunity, what does the term innate imply? Group of answer choices the mechanism will be built-in and present at birth the mechanism will be acquired over an individual's lifetime the mechanism will develop based upon exposure to specific pathogens the mechanism will provide defense against many different types of pathogensWhat is the difference between natural and acquired immunity?
- What is innate immunity? List the four types of barriers which protect the body from the entry of the foreign agents.Acquired or adaptive immunity can be divided in to Natural Active, Natural Passive, Artificial Active, and Artificial Passive Immunity. Which types will lead to long lasting immune protection? Which will provide short term protection?Why are innate immunity and inflammation described as “nonspecific”?
- Describe a type of autoimmune disease. There are many of them. What is an autoimmune disease? Who is susceptible? What is the suggested cause? What is the prognosis for someone with the autoimmune disease that you chose. How is the disease treated?The correct order of words to describe how innate immune response responds to a pathogen that has gotten by the physical and chemical barriers is: À) Skin, Saliva, Cytokines, Macrophage B)Macrophage, Cytokines, Neutrophil, Natural Killer Cell C) Neutrophil, Cytokines, Killer T Cell, Antibodies D) Antigen, Macrophage, B Cell, Killer T CellDraw a figure illustrating the sequence of events in a typical inflammatory response to a bacterial infection caused by injury to the skin (in 3 main stages). Include a note at top of figure: Is this an example of an innate response or adaptive immune response? Include the following structures/cells/chemicals: epidermis, dermis, splinter contaminated with bacteria puncturing skin, macrophages, mast cells, neutrophils, nitric oxide (as blue dots), endothelial cells lining capillary, red blood cells within capillary, histamine (as green dots). Under each stage, describe the events occurring in the 3 main stages: Stage 1: What do mast cells and endothelial cells produce in initial response to injury? What do the chemicals produced by the cells do? Stage 2: What happens to capillaries? What leaks out of capillaries to enter the site of the wound? Stage 3: What do neutrophils and macrophages do? What happens to capillaries at this point?
- What is the difference between an allergy and an autoimmune response?Correctly order the steps in cellular Immunity. Below is a sequence of events. Place them in the order they should occur, number 1 being the first item. Select the step number from the drop down next to each item. Items to order: a) .Cytotoxic T cell (CTL) recognizes the infected host cell b) The CTL secretes perforin and granzyme, causing apoptosis c) The CTL interacts with epitope presented by MHC-I on the dendritic cell d) The helper T cell activates the CTL cellImmunity can be of many types: natural activeimmunity, natural passive immunity, artificial activeimmunity and artificial passive immunity. Which of theseforms of immunity confer immune memory?
