Our Living Systems

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Across
  1. 2. Type of blood cell that makes scabs
  2. 5. Type of blood cell that fights infections
  3. 6. Also called your 'windpipe"
  4. 10. Largest artery in your body
  5. 11. Side of the heart that carries deoxygenated blood
  6. 12. Type of blood cell that supplies oxygen and nutrients
  7. 15. Fills with air and supplies our body with oxygen
  8. 16. Filters and warms air
Down
  1. 1. Bottom part of a heart chamber
  2. 3. Expands and contracts to help us breathe
  3. 4. Side of the heart that carries oxygenated blood
  4. 7. Top part of a heart chamber
  5. 8. Muscle that pumps blood through our body
  6. 9. Carry "clean" blood through our body
  7. 13. Carry the "dirty" blood back to the heart
  8. 14. Type of blood cell that carries waste out