Across
- 1. stores iron, gets rid of red blood cells
- 5. oil, sweat and sebaceous glands
- 7. swelling due to poor lymph drainage
- 8. contains tears with lysozyme
- 12. inborn or natural defense
- 13. monitors intestinal bacteria
- 15. filled with white blood cells
- 17. urine flow prevents the growth of bacteria
- 18. remove bacteria from body
- 20. produces hormones, help T cells mature
Down
- 2. artificial antibody injected into the body
- 3. originate in the thymus
- 4. originate in the Bone marrow
- 6. a colorless fluid that contains white blood cells
- 9. enlarged lymph nodes due to infection
- 10. inflammatory reaction
- 11. lymphatic tissue behind the nose,traps bacteria
- 14. defense acquired after 4 days
- 16. contains hair and mucus
- 19. an impervious barrier