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Transcript

  • 1. Immunity = All the mechanism the body uses to protect the body from foreign agents Innate = Protection you are born withAcquired = Protection develop after birth Hypersensitivity = Over-reacts Autoimmunity = Attack normal cells
  • 2. 1. Physical Barriers Skin Mucous Membrane Respiratory system Digestive system
  • 3. 2. Cells Macrophages
  • 4. 3. Chemicals Cl H pH Enzymes
  • 5. 4. Fever Kill germs with heat before body dies
  • 6. Acquired Immunity - Cells T Lymphocyte Cells - Kill specific germs B Lymphocyte Cells - Make antibodies Macrophages - Kill cells marked as bad
  • 7. Acquired Immunity - Organs Bone Marrow - Produces all blood cells - Matures B Lymphocytes
  • 8. Acquired Immunity - Organs Thymus - Matures T Lymphocytes 90-95% of all cells killed