Across
- 5. small organ in the upper chest under the sternum
- 6. destroy or inactivate antigens
- 7. disease causing agents such as a bacteria or virus
- 8. immunity received due to either a vaccination or immunization
- 9. origin of RBCs, WBCs, and platelets
- 10. a fluid containing WBCs which removes bacteria and certain proteins from the tissues
- 11. removes old and damaged RBCs, filters blood
Down
- 1. immunity a person is born with
- 2. lymph nodes, thymus, spleen, bone marrow
- 3. produces and transports lymph fluid from tissues to the circulatory system
- 4. any substance which can trigger an immune response