study practice

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Across
  1. 3. derects air into the lungs
  2. 8. helps make scabs
  3. 9. smallest blood vessle
  4. 11. covers the inside of the small intestine
  5. 12. carrys blood away from the heart
  6. 14. Found in the kidney, little filter that blood goes through
  7. 15. upper chamber of the heart
Down
  1. 1. lower chamber of the heart
  2. 2. Airways in the lungs that lead from the bronchi to the alveoli
  3. 4. tiny sacs of lung tissue
  4. 5. Large flat muscle at the bottom of the chest
  5. 6. stores urine
  6. 7. allows air to pass to and from the lungs
  7. 10. liquid part of blood
  8. 13. carrys blood to the heart