Research Article

The Characteristics of Action Potentials in Primo Vessels and the Effects of Acetylcholine Injection to the Action Potentials

Figure 4

A comparison of the amplitude, FWHM, and period for sections before and after acetylcholine injection. (a) The amplitude was slightly but not significantly increased after injection. (b) The FWHM was maintained in both sections. (c) The period decreased after injection. Acetylcholine activated the Primo-vessels.
657969.fig.004a
(a)
657969.fig.004b
(b)
657969.fig.004c
(c)