Immune System

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Across
  1. 3. A protein that acts against a specific antigen
  2. 6. system defends the body against disease causing organisms
  3. 7. A protein that, when introduced in the blood, triggers the production of an antibody
Down
  1. 1. common response to an infection where blood cells break and white blood cells flock to the area
  2. 2. when antigens are deliberately introduced into the immune system to produce immunity
  3. 4. a person may never become ill to a specific disease or invader in the body
  4. 5. a bacteria or a virus that can cause disease