Across
- 4. create a gentle current that moves mucus
- 7. a muscle of respiration
- 9. the pressure in the pleural space
- 10. the pressure in the alveoli
- 11. traps inspired dust, bacteria, and other debris
- 13. bronchioles serving alveoli with high pCO2 should ______
- 15. dioxide the most potent chemical influencing respiration
- 16. temporary cessation of breathing
- 18. the blood flow in pulmonary capillaries
- 20. the pressure of a gas varies inversely with its _________
- 22. oxygen travels in the blood bound to ________
- 23. the total amount of exchangeable air
- 26. lighten the skull
- 27. cells that produce mucus
Down
- 1. cells that secrete surfactant
- 2. where the trachea branches into the two main bronchi
- 3. diffuses INTO blood in the lungs
- 5. site of gas exchange
- 6. this gradient determines the direction a gas flows
- 8. decreased by surfactant
- 12. main way CO2 travels in blood
- 14. increased temp __________ hemoglobin's oxygen affinity
- 17. guardian of the airway
- 19. relative amount increases as you move down the respiratory tract
- 21. air in the conducting respiratory passageways that doesn’t contribute to gas exchange
- 24. leading cause of cancer death in North America
- 25. supported by C-shaped cartilage rings