Influence of upper airway pressure changes on genioglossus muscle respiratory activity.

@article{Mathew1982InfluenceOU,
  title={Influence of upper airway pressure changes on genioglossus muscle respiratory activity.},
  author={O. Mathew and Yousef K Abu-Osba and Bradley T. Thach},
  journal={Journal of applied physiology: respiratory, environmental and exercise physiology},
  year={1982},
  volume={52 2},
  pages={438-44}
}
The effects of change in pharyngeal airway pressure on electromyographic (EMG) activity of a pharyngeal dilating muscle (genioglossus) were investigated in 20 anesthetized rabbits. In vagotomized animals, upper airway loading maneuvers (nasal occlusion) increased the peak inspiratory activity of the genioglossus (GG) muscle on the first occluded breath. In contrast, "unloading" maneuvers (switching from nose to tracheostomy breathing) decreased GG activity. To further characterize the GG… CONTINUE READING

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