Describe the 3 levels of defense mechanisms. Describe the importance of mast cells, complementary proteins and phagocytes...

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Biology

Describe the 3 levels of defense mechanisms.
Describe the importance of mast cells, complementary proteinsand phagocytes in inflammatory response.
Why is the lymphatic system important for the immunesystem?
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ANSWER 1 THE THREE LEVEL OF DEFENSE MECHANISM ARE The first line of defense in our bodies are physical and chemical barriers our skin stomach acids mucus tears vaginal opening of which the last three mostly produce lysozyme to destroy harmful incoming pathogens In our bodies the second line of defense is nonspecific immune responses macrophages neutrophils interferons and complement proteins This line of defense also includes fever and inflammatory response as nonspecific defenses Our third line of defense is specific immune responses T Cells and B Cells There are many types of each which work like a close knit team to destroy pathogens If pathogens invaders try and succeed in penetrating the first line of defense then the second line of defense is ready to act If both the first and second line of defense fail then the third line of defense will act It is when all three lines of defense are breached that we get sick and are subject to disease ANSWER 2 Inflammation is the immune systems response to harmful stimuli such as pathogens damaged cells toxic compounds or irradiation and acts by removing injurious stimuli and initiating the healing process Inflammation is therefore a defense mechanism that is vital to health Usually during acute inflammatory See Answer

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