Page 91 - Electrical Safety of Low Voltage Systems
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74 Chapter Five
FIGURE 5.2 Electrical
model of a cell.
close and the potassium ions channels open. These channels are gates
to the K ions, which, by leaving the cell, cause it to repolarize and
+
thepotentialtoreachnegativevaluesagain.Eventually,themembrane
potassiumconductancedropsandthecellreturnstoitsoriginalresting
potential. This total process takes about 2 ms.
FIGURE 5.3 Action potential.
