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. Author manuscript; available in PMC: 2015 Jul 13.
Published in final edited form as: Exp Physiol. 2011 Feb 18;96(5):548–555. doi: 10.1113/expphysiol.2010.056242

Figure 2. Effect of pontine carbachol injection on hypoglossal nerve activity (HNA), phrenic nerve activity (PNA), respiratory rate and its variability.

Figure 2

In A, note the respiratory rate increase in association with the depression of HNA and that the respiratory rate remains partly elevated when HNA returns to the precarbachol level. B, expanded traces illustrating both raw and integrated PNA and HNA during the selected stages of the experiment (marked by grey shading in A).