Circulatory System Crossword Puzzel

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Across
  1. 3. carries oxygen from the lungs to all parts of the body.
  2. 5. made of cardiac muscle
  3. 8. links veins and arteries
  4. 10. right and left ? are at the bottom of the heart
  5. 11. a vein carries blood to the
Down
  1. 1. The artery carries deoxygenated blood from the heart to the lungs
  2. 2. carries blood to the heart
  3. 4. Carries blood away from the heart
  4. 6. veins contain ? to prevent the backflow of blood
  5. 7. The heart pumps blood from the left ventricle into the
  6. 9. the ? is found at the top of the heart