3rd Line Of Defense

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3rd Line Of Defense

  1. 1. Immune System Third Line of Defense – Specific Immunity
  2. 2.  called into action when nonspecific methods are not enough and infection becomes widespread
  3. 3. FUNCTION  mounts attacks against specific foreign substances specific foreign substances
  4. 4. FEATURES… …
  5. 5.  Self/non-self discrimination - it normally distinguishes between self and non-self and only reacts against non-self. non-self
  6. 6.  When a nonself (foreign) body is detected, mitotic activity in B and T lymphocytes is stimulated
  7. 7.  Whilemitosis is occurring, the daughter populations become subdivided into…

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