Heart crossword

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Across
  1. 3. The top vein where the blood enters the heart
  2. 8. pumps blood carrying lots of oxygen to the body
  3. 9. the top upper chambers
Down
  1. 1. the bottom vein where the blood enters the heart
  2. 2. carbon dioxide passes passes out of the lungs and it breathed out
  3. 4. pumps to the lungs
  4. 5. the smallest blood vessel in the body
  5. 6. collects blood from the body
  6. 7. collects blood from the lungs and pumps it to the left ventricle