Lymphatic System Project P.3

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Across
  1. 3. A small bean shaped structure that is part of the immune system.
  2. 6. a blood protein produced in response to a specific antigen.
  3. 7. this is a acquired response caused by pathogens.
  4. 8. a foreign substance or toxin which causes a immune response.
  5. 9. two small masses of lymphoid tissue in the throat.
Down
  1. 1. an abdominal organ involved in the production and removal of blood cells.
  2. 2. A thin tube that carries lymphatic fluid and white blood cells.
  3. 4. a cell that acts as the first line of defense in the innate immune response.
  4. 5. this immunity is given/provided to a person when given antibodies to a disease.