Across
- 4. white blood cells found in large numbers within each lymph node
- 5. the body's ability to resist or protect itself against a particular disease
- 7. membrane special skin cells that line the mouth, nose, and throat
- 9. tissue fluid becomes this once it enters the lymph capillaries
- 10. bacteria and viruses that cause disease
- 11. tiny, hairlike projections which line the mucous membrane
- 12. nodes enlarged bunches of lymphatic tissue along the lymph vessels
Down
- 1. special proteins produced in certain white blood cells that help fight against pathogens
- 2. the largest lymphatic organ in your body
- 3. the stomach acid that is able to kill harmful bacteria
- 6. tiny creatures visible only with a microscope
- 8. vessels transportation tubes for lymph
- 9. a special enzyme contained in perspiration and tears which kills harmful bacteria