Heart Crossword Puzzle

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Across
  1. 2. A blood vessel that carries blood away from the heart
  2. 5. A vein that carries blood to the heart
  3. 7. Prevents the blood from flowing backward
  4. 8. A dividing wall
  5. 9. A passage in the heart
  6. 10. A fluid-filled cavity
Down
  1. 1. Blood vessels that deliver nutrients and oxygen throughout the body
  2. 3. Middle layer of the heart
  3. 4. A device that moniters Your heart rate
  4. 5. A tube that carries blood
  5. 6. The main artery. Supplies oxygen-rich blood to the circulatory system