Lymphatic Crossword

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Across
  1. 3. A system involving lymphatic vessels and nodes
  2. 4. Largest lymphatic organ in the body
  3. 7. Follicles Structural units of lymphatic tissue helping to filter lymph
  4. 13. Clear fluid that travels through lymphatic vessels
  5. 14. Central nervous system lymphatic counterpart
  6. 15. Primary organ for T cell maturation
  7. 17. Substances recognized as foreign
  8. 19. Type of fluid formed in tissue spaces
  9. 20. Nodes that trap bacteria in the throat
Down
  1. 1. Inflammation or swelling due to lymph fluid retention
  2. 2. Proteins that tag invaders for destruction
  3. 5. White blood cells that perform phagocytosis
  4. 6. Innate defense enzyme in saliva and tears
  5. 8. Body's defense against infection or toxins
  6. 9. Milky substance in the lymphatic system
  7. 10. Thin tubes that carry lymph
  8. 11. D Immunoglobulin presented on B cells
  9. 12. Lymphatic vessels in the intestines absorbing fats
  10. 16. Patches Lymphoid tissue in the intestine
  11. 18. First lymphatic duct to enter the systemic circulation