Across
- 4. blood cell that ingests and destroys foreign particles and cells
- 8. clear fluid collected from tissues and transported by lymph vessels to the venous circulation
- 9. surgical removal of the tonsils
- 10. substance producing hypersensitivity
Down
- 1. state of being protected
- 2. preparation to generate active immunity
- 3. reaction directed against a person's own tissue
- 5. immediate severe allergic response
- 6. a disease causing microorganism
- 7. poisonous substance formed by a cell or organism
- 8. any neoplasm of lymphatic tissue