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