Across
- 1. Lymphatic duct that returns fluid to the right subclavian vein
- 4. Fluid in the blood
- 6. Adenoid is an example of this part
- 7. Tissue donated from an unrelated person
- 8. Fluid in lymph vessels
- 9. Type of immunity that targets virus-infected cells
- 11. Fluid that surrounds cells
- 12. Traps microorganisms in the respiratory pathway
Down
- 2. The third line of defense
- 3. The fetus gets passive immunity through this organ
- 5. Type of immunity that is also called humoral immunity
- 10. When tonsils are infected with bacteria