TABLE A2.

Typical parameter values for muscle sodium channels

Parameter	Value	Dimension
PCl	(1 − 5) × 10−6	cm/sec
$\stackrel{-}{P_{Na}}$	2 × 10−4 − 2 × 10−3	cm/sec
${\stackrel{-}{\alpha }}_m$	0.13	ms−1
${\stackrel{-}{V}}_m$	−40	mV
$k_{\alpha m}$	4	mV
${\stackrel{-}{\beta }}_m$	0.7	ms−1
$k_{\beta m}$	6	mV
${\stackrel{-}{\alpha }}_h$	2 × 10−4	ms−1
${\stackrel{-}{V}}_h$	−19	mV
$k_{\alpha h}$	7.6	mV
${\stackrel{-}{\beta }}_{h1}$	9	ms−1
${\stackrel{-}{\beta }}_{h2}$	0.08	(mV × ms)−1
$k_{\beta h}$	20	mV
[Na]o	78	mM
[Na]i	13	mM

See Results for specific deviations from these values.