Ch 21 - The Lymphatic System

1. The lymphatic fluid comes from ________________.

2. The lymphatic system carries the lymph fluid _____________.

3. The flow of lymph is _______________.

4. Lymph returns to the blood via the _____________ and _____________ veins.

5. Lymph travels __________ through the lymphatic system.

6. Lymph starts out as ____________ and leaks out as interstitial fluid before becoming lymph.

7. The flow of lymph is controlled by _____________________.

8. Lymphatic vessels contain one-way valves to prevent _____________.

9. The lymphatic capillaries are __________________.

10. The lymphatic system ___________ spread of pathogens and cancer cells.

11. Lymphoid tissue is made up of ______________ tissue

12. Lympoid tissue houses macrophages and _____________.

13. T cells and B cells are types of ______________.

14. Plasma cells, which come from B cells, produce _____________.

15. Macrophages are examples of ____________ that destroy foreign matter.

16. The job of lymph nodes is to _______________.

17. The ___________ destroys old red blood cells and pathogens in the blood.

18. The _____________ remove pathogens in the respiratory and digestive tracts.

19. The lymph nodes are located ___________________.

20. The lymphoid organs are made up of ______________________.