The Heart

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Across
  1. 5. Blood poor in oxygen
  2. 7. Fourth chamber
  3. 8. Sends the poor in oxygen blood to the heart
  4. 9. Sends the oxygenated blood to the body
  5. 10. Source
Down
  1. 1. 2nd chamber
  2. 2. Where arteries and veins meet
  3. 3. Third chamber
  4. 4. First chamber
  5. 6. Blood rich in oxygen
  6. 7. Where oxygen is