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Amplitude (mV) of the downward Na+ component of the nerve action potential in proximal, central and distal regions of the nerve terminal before and after 1 × 10−5 m carbachol (CCh) application
| Proximal | Central | Distal | |
|---|---|---|---|
| Control | 0.21 ± 0.02 | 0.13 ± 0.01 | 0.07 ± 0.01 |
| CCh | 0.19 ± 0.03 | 0.15 ± 0.03 | 0.08 ± 0.03 |
Values are means ± s.e.m. of 6 measurements, P > 0.05.
