BIOL204-Respiratory System

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Across
  1. 3. effect describing how CO2 and low pH reduce hemoglobin’s oxygen affinity
  2. 5. air passages beneath each nasal turbinate
  3. 8. pressure difference between alveolar and intrapleural pressure; also called lung recoil pressure
  4. 11. phase of breathing when intra-alveolar pressure exceeds atmospheric pressure
  5. 12. large airways branching from the trachea into each lung
  6. 13. tendency of lung tissue to return to original shape after stretching
  7. 16. type of cartilage forming C-rings that keep the trachea open
  8. 18. volume of air moved in or out during a normal breath
  9. 20. substance that reduces surface tension in alveoli to prevent collapse
  10. 22. measure of the lung’s ability to stretch and expand during inhalation
  11. 24. effect describing how deoxygenated hemoglobin binds CO2 more readily
  12. 26. curved bones (turbinates) that divide the nasal cavity
  13. 27. smaller airways branching from the bronchi; include terminal and respiratory types
Down
  1. 1. name of the vocalis muscles that fine-tune vocal cord tension and vibration
  2. 2. law stating that gas volume is inversely proportional to pressure at constant temperature
  3. 4. shape of the epithelial cells lining the alveoli (simple _____ epithelium)
  4. 6. form of hemoglobin with CO2 bound to amino groups of its chains
  5. 7. flap that closes over the trachea during swallowing to prevent food entry
  6. 9. form of hemoglobin not bound to oxygen, found in venous blood
  7. 10. law stating pressure in alveoli is proportional to surface tension and inversely to radius
  8. 14. ion exchanged with bicarbonate in RBCs to aid CO2 transport (_____ shift)
  9. 15. phase of breathing when diaphragm and external intercostal muscles are contracted
  10. 17. law stating that total pressure of a gas mixture equals the sum of partial pressures
  11. 19. law stating that gas solubility in a liquid is proportional to its partial pressure
  12. 20. spaces within skull bones that reduce weight and serve as resonant chambers for voice
  13. 21. direction of oxygen dissociation curve shift when CO2 increases in tissues
  14. 23. tiny balloon-shaped sacs where gas exchange occurs in the lungs
  15. 25. direction of oxygen dissociation curve shift when 2,3-DPG decreases