control of respiration

12345678910111213141516171819202122232425262728
Across
  1. 6. we breath more vigorously and deeply during ... .
  2. 9. we all have ... controlled our breathing pattern at one time or another.
  3. 11. the medula contains two ... centers.
  4. 13. the respiratory system in healthy individuals has ... mechanisms.
  5. 14. an increase in the carbon dioxide level can cause a decrease ... pH.
  6. 15. the ventral respiratory group (VRG) contains both ... and expiratory neurons.
  7. 18. ... are able to detect high carbon dioxide levels when oxygen levels are low.
  8. 24. the vagus nerves send ... from the stretch receptors to the medula.
  9. 25. a low blood pH could also result from ... activities independent of breathing.
  10. 26. ... acid increases dramatically during hypoventilation.
  11. 27. respiratory pattern is called ... .
  12. 28. ... centers that control respiratory rhythm and depth.
Down
  1. 1. changes in oxygen concentration in the blood are detected by ... chemoreceptor region in the aorta.
  2. 2. hyperventilation often brought on by ... attacks.
  3. 3. after ... exercise expiration becomes active.
  4. 4. the hyperventilating person may get ... and faint because the resulting alkalosis.
  5. 5. ... can dramatically change the amount of carbonic acid in the blood.
  6. 6. ... factors also modify the rate and depth of breathing.
  7. 7. ... air contains more carbon dioxide than atmospheric air.
  8. 8. impulses from the expiratory neurons stop the stimulation of the ... and external intercostal muscles.
  9. 9. every ... in the body must have oxygen to live.
  10. 10. during singing and ... breath control is extremely important.
  11. 12. hyperventilation is an increase in the ... and depth of breathing.
  12. 16. increased body ... also causes an increase in the rate of breathing.
  13. 17. the ... and alveoli have stretch receptors that respond to extreme overinflation.
  14. 19. if breathing stops for an extended time ,... may occur as a result of insufficient oxygen in the blood.
  15. 20. breathing control centers are ... centers and medula centers.
  16. 21. by contrast,when blood starts to become slightly ... or basic,breathing slows and becomes shallow.
  17. 22. ... factors is the most important factors that can modify respiratory rate and depth.
  18. 23. slower ... allows carbon dioxide to accumulate in the blood.