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Examples of action potential recordings from mouse airway neurons. In A, the action potential of a phasic neuron (see Fig. 3) has a relatively longer duration (measured between arrowheads) compared with the durations in a tonic neuron shown in B (data summarized in Table 1). Also, note the longer action potential afterhyperpolarization (AHP; at downward arrow) by the phasic neuron (A). Scale bar in B is for traces A and B.
