Circulatory and Respiratory Systems

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Across
  1. 2. a hollow, muscular organ that pumps blood throughout the body
  2. 4. small vessels where oxygen and nutrients leave the blood to go into the cells and carbon dioxide and other waste products enter the blood from the cells
  3. 5. cells that carry oxygen throughout the body
  4. 7. carry waste products from all the parts of the body back to the heart
  5. 10. The lower chambers of the heart
  6. 12. carry blood that has oxygen and nutrients from the heart to all parts of the body
  7. 13. This separate the atria from the ventricles. They are flaps of tissue that prevent blood from flowing backwards.
  8. 14. The water portion of the blood
Down
  1. 1. cells that carry disease fighters
  2. 3. These structures help blood to clot
  3. 6. The upper chambers of the heart
  4. 8. Oxygen from the respiratory system + Nutrients from the digestive system = _________
  5. 9. tubes that carry blood throughout the entire body
  6. 11. The structure that separates the heart into two pumps