Ventilation response to CO2 in birds. II. Contribution by intrapulmonary CO2 receptors.

@article{Scheid1978VentilationRT,
  title={Ventilation response to CO2 in birds. II. Contribution by intrapulmonary CO2 receptors.},
  author={Peter Scheid and R K Gratz and Frank L. Powell and M. Roger Fedde},
  journal={Respiration physiology},
  year={1978},
  volume={35 3},
  pages={361-72}
}
The CO2 sensitivity of intrapulmonary CO2 receptors (IPC) in the duck was studied, before (Control) and after blockade of carbonic anhydrase by Diamox, by recording single unit afferent activity in the vagus nerve. During Control, IPC activity decreased with increasing airway CO2 concentration. After Diamox administration, the discharge from IPC was higher at all levels of airway PCO2, and the receptors' CO2 sensitivity was markedly attenuated. Comparing these results with measurements on… CONTINUE READING