Mathematical Distinction in Action Potential between Primo-Vessels and Smooth Muscle

Table 1

Amplitude, FW, and 𝑡_max of the action potentials from smooth muscle and Primo-vessels. The amplitude means the difference between the maximum potential and the rest potential. The FW means the time from depolarizing to repolarizing to the rest potential. The 𝑡_max means time that is taken to arrive at the maximum potential. The amplitude of the action potential from Primo-vessels was larger than that from smooth muscle. It took similar time for depolarizing of all types of pulses including pacemaker, but their repolarizing time varied.

	Amplitude (mV)	FW (s)	𝑡max (s)
Pacemaker pulse	4.45±3.02	1.83±0.90	0.39±0.16
Type I pulse	10.02±8.36	0.88±0.38	0.31±0.10
Type II pulse	13.67±8.69	2.75±1.17	0.38±0.15