Overview of defense mech

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Overview of defense mech

  1. 1. Overview of Defense Mechanisms(pg 4)
  2. 2. Overview of Defense Mechanisms(pg 4)• Pathogen = Disease-producing organism(bacteria, virus, fungus, protist, worm, etc.)
  3. 3. Overview of Defense Mechanisms(pg 4)• Pathogen = Disease-producing organism(bacteria, virus, fungus, protist, worm, etc.)• Resistance = Body’s ability to counteractpathogens
  4. 4. Overview of Defense Mechanisms(pg 4)• Pathogen = Disease-producing organism(bacteria, virus, fungus, protist, worm, etc.)• Resistance = Body’s ability to counteractpathogens• Non-specific mechanisms: act against allharmful agents
  5. 5. Overview of Defense Mechanisms(pg 4)• Pathogen = Disease-producing organism(bacteria, virus, fungus, protist, worm, etc.)• Resistance = Body’s ability to counteractpathogens• Non-specific mechanisms: act against allharmful agents• Specific mechanisms: attack particularpathogens. Results in immunity because thebody “remembers” the pathogen
  6. 6. Immune System consists of 3 lines ofdefense1. First line of defense (non-specific):Skin, mucous membranes, and theirsecretions
  7. 7. Immune System consists of 3 lines ofdefense1. First line of defense (non-specific):Skin, mucous membranes, and theirsecretions2. Second line of defense (non-specific):Chemicals, Phagocytic cells, inflammation
  8. 8. Immune System consists of 3 lines ofdefense1. First line of defense (non-specific):Skin, mucous membranes, and theirsecretions2. Second line of defense (non-specific):Chemicals, Phagocytic cells, inflammation3. Third line of defense (specific): Lymphocytesand macrophages
  9. 9. Diagram (pg 4)
  10. 10. Output (pg 5)Come up with an analogy of a place that mightbe invaded. Use all of page 5 to draw a colorpicture1. Draw the place and the invaders and explaineach in words2. Draw and label the first, second, and thirdlines of defense. Write an explanation of howeach one is similar to the corresponding lineof defense in the immune system

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