Immunity Introduction Crossword

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Across
  1. 1. Cells that capture antigens & initiate immune response
  2. 4. Main filter of blood-borne pathogens and antigens.
  3. 8. Low levels of platelets in the blood.
  4. 9. Toxin or foreign substance that induces an immune response.
  5. 11. Engulf & digest pathogens & clean up debris at site of injury.
  6. 12. Refers to increased WBC's w/increased # of immature neutrophils.
  7. 14. Term to describe a decreased number of WBCs
  8. 15. Bind to unwanted substances that enter the body and eliminate them.
  9. 16. Secretes hormones to maintain peripheral T cells.
  10. 17. Released in bloodstream in response to stress and acute hypersensitivity reaction.
Down
  1. 2. Utilizes T cells to attack viruses, pathogens, & tumors.
  2. 3. Utilizes B cells to attack bacteria & viruses; and then body knows how to respond with future run-ins to same pathogens.
  3. 5. Site of blood cell production.
  4. 6. WBC that promotes inflammation which helps to isolate and control disease.
  5. 7. Largest lymphoid organ in the body.
  6. 10. The first leukocyte to arrive at the site of injury to destroy invading antigens.
  7. 13. Term used for an increased number of WBCs