Respiratory and Cardiovascular Systems

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Across
  1. 2. This pair of organs exchange oxygen for carbon dioxide
  2. 4. These blood vessels distribute oxygenated blood to the body
  3. 6. This muscle contracts and retracts in order to pull air in and out of the lungs
  4. 8. This system transports blood to all parts of the body
  5. 10. Airway that leads from the larynx to the lungs
Down
  1. 1. This system is responsible for breathing
  2. 3. The largest blood vessel in the body
  3. 5. Small blood vessels of hair-like thinness that form a branching network between arteries and veins
  4. 7. This organ pumps blood to through blood vessels
  5. 9. These blood vessels collect oxygen poor blood and return it to your heart