KNES 348 SI Exam 4

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Across
  1. 1. Smooth muscle in the air passageway contracts to cause __________.
  2. 4. Sharp pain between the ribs when running
  3. 5. Blood volume of an untrained female
  4. 6. Percentage of blood that is formed elements
  5. 12. Shuttles oxygen from the cell membrane to the mitochondria
  6. 13. With an increase in red blood cells the blood becomes more _________.
  7. 14. This area of the respiratory control center provides signal to the dorsal respiratory group to become active
  8. 15. The ________ reflex prevents over inflation of the lungs
  9. 18. Acts as a cut off switch for the dorsal respiratory group
  10. 19. Expiration of air at rest is a ______ process.
Down
  1. 2. Excessive rate and depth of breathing leading to a loss of CO2
  2. 3. This causes the inner lining of the passageway to swell inward which decreases radius
  3. 7. Blood volume of an untrained male
  4. 8. Peripheral chemoreceptors measure this when we produce lots of action potentials
  5. 9. Elevated ventilation during exercise
  6. 10. Difficult or labored breathing
  7. 11. The _______ threshold relates to the anaerobic threshold
  8. 16. Normal breathing at rest
  9. 17. In terms of ventilation we are not very sensitive to ________ levels in the blood