Across
- 3. These are part of the immune system
- 6. The B cells mature in this and the T cells originate in this as well
- 7. These are organs that control the production as well as the maturation of lymphocytes
- 8. The system that is a network of vessels which lymph drains from the tissue
- 11. Lymphocytes can be found in this organ
Down
- 1. These nodes are small swellings within the lymphatic system where lymph is filtered and lymphocytes is formed.
- 2. This lymphocyte is one of three types of T cells which can kill some types of foreign bodies
- 4. These cells attack the bacteria that are attacking the body
- 5. The organ where the T cells mature in
- 9. These cells help other cells that reside in the immune system
- 10. These cells attack the infected body cells and destroy them
