Circulatory System

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Across
  1. 4. this part of blood helps you heal when you get a cut
  2. 9. the small, upper chambers of the heart
  3. 10. fluid that carries nutrients, oxygen, carbon dioxide, cellular wastes, and other materials throughout the body
  4. 11. arteries usually carry this kind of blood
  5. 14. very tiny blood vessels that exchange gases and nutrients with the lungs and body cells
  6. 15. blood vessels that carry blood to the heart
  7. 16. this type of blood cell protects the body from pathogens
  8. 17. where gases are exchanged between the body and the environment
Down
  1. 1. the liquid part of blood
  2. 2. the large, lower chambers of the heart
  3. 3. this type of blood cell carries oxygen
  4. 5. tiny sacs where gases can pass between the lungs and blood in the capillaries
  5. 6. these one-way "doors" prevent blood from flowing backward through your circulatory system
  6. 7. tubes that travel throughout the body carrying blood with nutrients, oxygen, and waste products
  7. 8. blood vessels that carry blood away from the heart
  8. 12. muscular organ that pumps blood through the blood vessels
  9. 13. large muscle that causes inhalation and exhalation