Circulatory and Respiratory System

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Across
  1. 2. deliver blood to the ventricles
  2. 4. 2 large sponge-like organs
  3. 5. main part of the circulatory system
  4. 6. branches into 2 tubes
  5. 8. 2 tubes that branch from the trachea
  6. 9. where oxygen and carbon exchange
Down
  1. 1. small branches from the bronchi
  2. 3. passageway for air
  3. 7. main passageway for oxygen
  4. 10. vocal cords