Model Mathematics

Component: environment

Component: membrane

ddtimeV=-i_Na+i_si+i_K2+i_x1+i_x2+i_qr+i_K1+i_Na_b+i_Cl_bC

Component: fast_sodium_current

i_Na=g_Nam3hV-E_Na

Component: fast_sodium_current_m_gate

alpha_m=1V+471--V+4710 beta_m=40-0.056V+72 ddtimem=alpha_m1-m-beta_mm

Component: fast_sodium_current_h_gate

alpha_h=0.0085-0.184V+71 beta_h=2.5-0.082V+10+1 ddtimeh=alpha_h1-h-beta_hh

Component: secondary_inward_current

i_si=g_sidfV-E_si+g_si_d1V-E_si

Component: secondary_inward_current_d_gate

alpha_d=0.002V+401--0.1V+40 beta_d=0.02-0.0888V+40 ddtimed=alpha_d1-d-beta_dd

Component: secondary_inward_current_f_gate

alpha_f=0.000987-0.04V+60 beta_f=0.02-0.087V+26+1 ddtimef=alpha_f1-f-beta_ff

Component: secondary_inward_current_d1_gate

d1=11+-0.15V+40

Component: pacemaker_potassium_current

i_K2=I_K2s I_K2=2.8V-E_K25-1V+6012.5+V+6025

Component: pacemaker_potassium_current_s_gate

alpha_s=0.001V-E_s1--0.2V-E_s beta_s=0.00005-0.067V-E_s ddtimes=alpha_s1-s-beta_ss

Component: plateau_potassium_current1

i_x1=x1I_x1 I_x1=1.2V+9525-1V+4525

Component: plateau_potassium_current1_x1_gate

alpha_x1=5e-4V+5012.11+V+5017.5 beta_x1=0.0013-V+2016.671+-V+2025 ddtimex1=alpha_x11-x1-beta_x1x1

Component: plateau_potassium_current2

i_x2=x2I_x2 I_x2=25+10.385V

Component: plateau_potassium_current2_x2_gate

alpha_x2=0.00012711+-V+195 beta_x2=0.0003-V+2016.671+-V+2025 ddtimex2=alpha_x21-x2-beta_x2x2

Component: transient_chloride_current

i_qr=g_qrqrV-E_Cl

Component: transient_chloride_current_q_gate

alpha_q=0.008V1--0.1V beta_q=0.08-0.0888V ddtimeq=alpha_q1-q-beta_qq

Component: transient_chloride_current_r_gate

alpha_r=0.00018-0.04V+80 beta_r=0.02-0.087V+26+1 ddtimer=alpha_r1-r-beta_rr

Component: time_independent_outward_current

i_K1=I_K22.8+0.2V-E_K11--V-E_K125

Component: sodium_background_current

i_Na_b=g_NabV-E_Na

Component: chloride_background_current

i_Cl_b=g_ClbV-E_Cl