respiratory system, digestive system, and urinary system

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Across
  1. 1. cells/ Produce antibodies to fight infections
  2. 2. duct/ Largest lymphatic vessel in the body
  3. 5. Long-term airflow blockage
  4. 8. Building blocks of DNA and RNA
  5. 11. Fluid within the lymphatic system is called
  6. 12. cells/ Alerts other immune cells to fight
  7. 13. What system makes hormones that control body functions
  8. 14. Air in and out during normal breathing
  9. 15. Chemically breaking down food into nutrients
Down
  1. 1. arteries/ Carry oxygenated blood to lung tissue itself
  2. 3. Filters blood
  3. 4. Enzymes break down lactose
  4. 6. Dependent on the force of air out of the lungs
  5. 7. Temporary stopping of breathing
  6. 9. Secret pepsinogen
  7. 10. Innermost layer of the GI tract