Fig. 3.
Electrophysiological characterization of A-fiber innervating rat bronchopulmonary airways. A and B: representative examples of action potentials evoked from an individual bronchopulmonary A fiber to mechanical distention (25 cmH2O), αβmATP (30 μM), AITC (100 μM), capsaicin (300 nM), nicotine (100 μM), and punctate mechanical stimulus (von Frey). C: group data showing the %A fibers responding to each stimulus. D: mean ± SE peak discharge (Hz) in response to each stimulus (only responsive A fibers included).