indys cross word puzzle

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Across
  1. 2. Blood cell that carrys oxygen back and forth
  2. 6. blood filter found in kidneys
  3. 7. Cell fragment that help form scabs
  4. 11. Upper chamber of the heart
  5. 14. Muscular tube that connects mouth to stomach
  6. 15. Smallest blood vessel connecting veins and arteries
Down
  1. 1. Organ where most nutrient absorption takes place
  2. 3. Airways in the lungs that lead form the bronchi to alveloi
  3. 4. Lower chamber of the heart
  4. 5. liquid part of blood
  5. 8. Allows air to pass to and from lungs
  6. 9. A blood vessel that carries blood away from the heart
  7. 10. Passages direct air into the lungs
  8. 12. A blood vessel that carries blood back to the heart
  9. 13. Tiny finger shaped structures that absorb