Respiratory System!

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Across
  1. 2. In mucus
  2. 3. Tissue that covers the outside of the lungs
  3. 5. Passage for air into the bronchi
  4. 6. _____ Volume. Air left in the lungs, even after a deep breath
  5. 9. Splits into larynx & esophagus
  6. 11. Fish use them to breathe
  7. 12. strong muscle that signifies the bottom of the thoracic cavity
  8. 14. One way air can enter the body (2 words)
  9. 15. Traps dust, dirt, and other particulates
  10. 16. Connects the bronchus to the alveolar sacs
  11. 19. Molecule in red blood cells that oxygen attaches to
Down
  1. 1. Expiratory + tidal + residual volumes
  2. 4. Voice box
  3. 5. ____ Volume. A regular breath
  4. 7. _____ Volume. Little bit of extra air after exhalation. (2 words)
  5. 8. Air moves through the nasal canal away from the lungs
  6. 10. Air moves through the nasal canal towards the lungs
  7. 13. Has the consistency of detergent. Lowers surface tension in the alveoli
  8. 17. How elastic the lungs can be
  9. 18. Where gas exchange occurs