Respiratory 5

Edit Answers
12345678910111213141516171819202122232425262728
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 ______