: This is a leak channel for potassium NEURON { SUFFIX extrapump USEION k WRITE ik RANGE pumpik, pumpina USEION na WRITE ina } UNITS { (S) = (siemens) (mV) = (millivolts) (mA) = (milliamp) } PARAMETER { pumpik =0 (mA/cm2) pumpina =0 (mA/cm2) } ASSIGNED { ik (mA/cm2) ina (mA/cm2) } BREAKPOINT { ik = pumpik ina =pumpina }