The Immune System

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Across
  1. 4. the spleen is located in the _____________
  2. 6. babies receive antibodies from their ___________
  3. 7. these are the B-cells that the Immune System uses to create antibodies
  4. 9. the spleen removes bad blood cells and _____________
  5. 10. the Immune System produces _____________ called "antibodies" to fight invaders
Down
  1. 1. ______________ is the word for a pathogen that causes disease
  2. 2. _________ are introduced with a vaccine to teach the Immune System how to respond to a disease without getting sick.
  3. 3. the Immune System is the system of the body that protects us against ___________
  4. 5. __________ immunity is the opposite of natural immunity. It happens when the body learns how to fight a disease after getting sick.
  5. 8. this sticky substance traps germs