combining forms

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Across
  1. 1. - heart
  2. 3. - arm
  3. 6. - atrium
  4. 9. - vein
  5. 10. - aorta
  6. 11. - mucus
  7. 12. - heart
  8. 14. - pulse
  9. 15. - Vessel
Down
  1. 2. - oxygen
  2. 4. - artery
  3. 5. - blue
  4. 7. - chest
  5. 8. - clot
  6. 13. - rhythm