Circulatory and Respiratory Crossword

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Across
  1. 3. Heart>Body Cells>Heart
  2. 8. Oxygenated blood
  3. 9. type of muscle located in the heart
  4. 10. Vessels take blood away from heart
  5. 11. Prevents the backflow of blood
Down
  1. 1. Heart>Lungs>Heart
  2. 2. Deoxygenated blood
  3. 4. Smallest blood vessels
  4. 5. Vessels take blood to the heart
  5. 6. Tubes that transport blood
  6. 7. Membrane that surrounds the heart