Component: environment

Component: membrane

$d V d time = − (i_Na + i_si + i_K2 + i_x1 + i_x2 + i_qr + i_K1 + i_Na_b + i_Cl_b) / C$

Component: fast_sodium_current

$i_Na = g_Na m 3 h (V − E_Na)$

Component: fast_sodium_current_m_gate

$alpha_m = (V + 47) / (1 − e − (V + 47) / 10) beta_m = 40 e − 0.056 (V + 72) d m d time = alpha_m (1 − m) − beta_m m$

Component: fast_sodium_current_h_gate

$alpha_h = 0.0085 e − 0.184 (V + 71) beta_h = 2.5 / (e − 0.082 (V + 10) + 1) d h d time = alpha_h (1 − h) − beta_h h$

Component: secondary_inward_current

$i_si = g_si d f (V − E_si) + g_si_d1 (V − E_si)$

Component: secondary_inward_current_d_gate

$alpha_d = 0.002 (V + 40) / (1 − e − 0.1 (V + 40)) beta_d = 0.02 e − 0.0888 (V + 40) d d d time = alpha_d (1 − d) − beta_d d$

Component: secondary_inward_current_f_gate

$alpha_f = 0.000987 e − 0.04 (V + 60) beta_f = 0.02 / (e − 0.087 (V + 26) + 1) d f d time = alpha_f (1 − f) − beta_f f$

Component: secondary_inward_current_d1_gate

$d1 = 1 / (1 + e − 0.15 (V + 40))$

Component: pacemaker_potassium_current

$i_K2 = I_K2 s I_K2 = 2.8 (e (V − E_K) / 25 − 1) / (e (V + 60) / 12.5 + e (V + 60) / 25)$

Component: pacemaker_potassium_current_s_gate

$alpha_s = 0.001 (V − E_s) / (1 − e − 0.2 (V − E_s)) beta_s = 0.00005 e − 0.067 (V − E_s) d s d time = alpha_s (1 − s) − beta_s s$

Component: plateau_potassium_current1

$i_x1 = x1 I_x1 I_x1 = 1.2 (e (V + 95) / 25 − 1) / e (V + 45) / 25$

Component: plateau_potassium_current1_x1_gate

$alpha_x1 = 5e-4 e (V + 50) / 12.1 / (1 + e (V + 50) / 17.5) beta_x1 = 0.0013 e − (V + 20) / 16.67 / (1 + e − (V + 20) / 25) d x1 d time = alpha_x1 (1 − x1) − beta_x1 x1$

Component: plateau_potassium_current2

$i_x2 = x2 I_x2 I_x2 = 25 + 0.385 V$

Component: plateau_potassium_current2_x2_gate

$alpha_x2 = 0.000127 × 1 / (1 + e − (V + 19) / 5) beta_x2 = 0.0003 e − (V + 20) / 16.67 / (1 + e − (V + 20) / 25) d x2 d time = alpha_x2 (1 − x2) − beta_x2 x2$

Component: transient_chloride_current

$i_qr = g_qr q r (V − E_Cl)$

Component: transient_chloride_current_q_gate

$alpha_q = 0.008 V / (1 − e − 0.1 V) beta_q = 0.08 e − 0.0888 V d q d time = alpha_q (1 − q) − beta_q q$

Component: transient_chloride_current_r_gate

$alpha_r = 0.000033 e − (V / 17) beta_r = 0.033 / (e − (V + 30) / 8 + 1) d r d time = alpha_r (1 − r) − beta_r r$

Component: time_independent_outward_current

$i_K1 = I_K2 / 2.8 + 0.2 (V − E_K1) / (1 − e − (V − E_K1) / 25)$

Component: sodium_background_current

$i_Na_b = g_Nab (V − E_Na)$

Component: chloride_background_current

$i_Cl_b = g_Clb (V − E_Cl)$