Respiratory 5

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Across
  1. 3. receptors for noxious chemicals and particles are located between epithelial cells lining the airways
  2. 4. most of the neurons for the DRG are located in the ______
  3. 5. decreased affinity of hemoglobin for O2 because of increased concentration of ______
  4. 7. central chemoreceptors are in close proximity to ___ and detect the decrease in pH
  5. 8. ______receptors in the lungs and joints
  6. 12. a ______ in pH signals the inspiratory center to increase breathing
  7. 15. respiratory group acts as an overdrive mechanism; totally inactive during normal quiet respiration
  8. 17. _______ mechanisms : arterial baroreflex
  9. 18. ______ mechanisms: muscle pump, respiratory pump
  10. 19. respiratory group for inspiration
  11. 21. pneumotaxic center is located on the ______
  12. 24. glomus cells function as _________
  13. 26. reflex stimulated by distension of the lungs and airways leading to decrease in breathing rate
  14. 28. hyperventilation leads to respiratory _________
Down
  1. 1. reaction where CO2 in the blood combines reversibly with H2O to form H+ and HCO3-
  2. 2. receptors that detect movement of limbs and instruct the inspiratory center to increase breathing rate; important in anticipatory ventilatory response to exercise
  3. 6. breathing is controlled by centers in the brainstem
  4. 9. voluntary control of breathing can be exerted by commands from the ______
  5. 10. respiratory group for inspiration and expiration
  6. 11. information from irritant receptors travels to ______ and causes reflex constriction of bronchial smooth muscle and increase breathing rate (I.e. shallow breathing)
  7. 13. dorsal and ventral respiratory groups are located on the _______
  8. 14. center which functions to control the switch-off point of the inspiratory ramp
  9. 16. chemoreceptors are very sensitive to decreases in PO2
  10. 20. 40 breaths/minute is indicative of a ______ pneumotaxic signal
  11. 22. chemoreceptors very sensitive to increase in PCO2
  12. 23. _______receptors for O2 and CO2
  13. 25. highly characteristic glandular-like cells that synapse directly or indirectly with the nerve endings
  14. 27. rate and frequency are two ways to control the inspiratory ______