Model Mathematics

Component: environment

Component: membrane

dd time V =- i_K + i_Ca + i_slow + i_Na_Ca Cm

Component: rapidly_activating_K_current

i_K = g_K n V - V_K

Component: rapidly_activating_K_current_n_gate

dd time n = lamda n_infinity - n tau_n n_infinity = 1.0 1.0 + V_n - V S_n

Component: calcium_current

i_Ca = g_Ca m_infinity V - V_Ca

Component: calcium_current_m_gate

m_infinity = 1.0 1.0 + V_m - V S_m

Component: slow_K_current

i_slow = g_s s V - V_K

Component: slow_K_current_s_gate

dd time s = S_V_R_s - s tau_s S_V_R_s = s_infinity + R_s s_infinity = 1.0 1.0 + V_s - V S_s

Component: Na_Ca_exchanger_current

i_Na_Ca = g_Na_Ca Ca_i nH K_1_2 nH + Ca_i nH V - V_Na_Ca V_Na_Ca = RT_F 3.0 ln Na_o Na_i -ln Ca_o Ca_i

Component: ionic_concentrations

dd time Ca_i = f - alpha i_Ca - 2.0 i_Na_Ca - k_Ca Ca_i + k_rel Ca_ret - Ca_i - k_pump Ca_i dd time Ca_ret =- k_rel Ca_ret - Ca_i + k_pump Ca_i