Across
- 2. largest lymphatic vessel
- 10. immunization by the injection of antibodies
- 11. form of small leukocyte
- 13. two small masses of lymphoid tissue in the throat
- 14. neutralize pathogens
- 16. small bean shaped glans
- 17. produced by thymus,actively participates in immune response
Down
- 1. colorless fluid containing white blood cells
- 3. fluid that surrounds tissue cells
- 4. produces T cells for the immune system
- 5. Immunity that occurs naturally
- 6. stimulate an individual's immune system to develop adaptive immunity to a pathogen.
- 7. immunity that develops after exposure to a suitable agent
- 8. produces antibodies
- 9. network of thin tubes that carry lymph and white blood cells
- 12. white blood cell in connective tissue
- 15. organ responsible for the production and removal of blood cells