HEALTH

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Across
  1. 2. lymph
  2. 5. atria
  3. 6. pneumonia
  4. 7. venacava
  5. 9. bronchiole
  6. 11. lymphocytes
  7. 13. alveoli
  8. 15. pathogen
Down
  1. 1. antigens
  2. 3. hemoglobin
  3. 4. cilia
  4. 8. tuberculosis
  5. 10. emphysema
  6. 12. killer
  7. 14. oxygen