Chapter 11 Bio

Chapter 11 Bio - thinner because of the dryer surroundings....

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1. As part of plan-A, the body has barriers of entry which stop pathogens from ever invading the body and causing infection. The main barrier in the respiratory system and the throat is a layer of mucus and the cilia lining. The mucus layer is responsible for trapping the pathogens, preventing them from invading other areas of the body. The cilia lining takes the pathogens back into the mouth, where they can then exit the body in saliva. In the scenario with meningitis, there is a small chance of an outbreak of meningitis during the rainy season because the mucus layer thrives more because of the dampness of the surroundings outside the body. The cilia lining may also be more successful because people tend to have wetter mouths, meaning more saliva, during the rainy season. The outbreak occurs during the dry season because the mucus layer is
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Unformatted text preview: thinner because of the dryer surroundings. The cilia lining is not as successful either because people are more likely to have dry mouths during a dry season. These barriers are more efficient during the rainy season. 2. Even though inflammation can be an uncomfortable side effect of recovery, inflammation is essential to the immune system’s response to tissue damage. Because some medications reduce inflammation, they are interfering with the body’s natural process to relieve the body of tissue damage. Interfering with the immune system’s response slows the body’s reaction to the injury or infection, impeding the immune function. There are side effects, such as inflammation, of hosts’ defenses, and the immune system would be more effective if medications did not try to relieve these necessary side effects....
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This document was uploaded on 11/02/2011 for the course BIO 117 at Rollins.

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