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Lesson 12.2 Review and Assessment
Know and Understand
Describe how the skin acts as a physical barrier against infectious agents.
Explain how the skin thwarts bacterial growth and reduces the risk of infection.
Identify the structures of the respiratory tract that are responsible for sweeping bacteria to the stomach to be destroyed.
Summarize the process by which cells engulf and destroy foreign matter and cellular debris.
Describe the role of histamine in the inflammatory response.
Analyze and Apply
After reading the section on the complement system, describe in detail the two primary ways in which the complement system can be activated.
Explain how an infection caused by a virus develops and spreads. Be sure to include the characteristics of a virus.
Explain why someone with an injury or illness might say that the affected part of his or her body feels as though it is "on fire."
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