Model Mathematics

Component: environment

Component: membrane

dd time V =- i_Na + i_Ca + i_K + i_K_Ca + i_L Cm

Component: sodium_current

i_Na = g_Na m_infinity 3.0 h V - V_Na

Component: sodium_current_m_gate

alpha_m = 0.1 V - 50.0 1.0 + -1.0 V - 50.0 -10.0 beta_m = 4.0 V - 25.0 -18.0 m_infinity = alpha_m 1.21 V + 78.71 alpha_m 1.21 V + 78.71 + beta_m 1.21 V + 78.71

Component: sodium_current_h_gate

alpha_h = 0.07 V - 25.0 -20.0 beta_h = 0.07 V - 55.0 10.0 1.0 + V - 55.0 10.0 dd time h = h_infinity - h tau_h h_infinity = alpha_h 1.21 V + 78.71 alpha_h 1.21 V + 78.71 + beta_h 1.21 V + 78.71 tau_h = 1.0 0.08 alpha_h 1.21 V + 78.71 + beta_h 1.21 V + 78.71

Component: calcium_current

i_Ca = g_Ca x V - V_Ca dd time c = f k1 x V - V_Ca - c

Component: calcium_current_x_gate

dd time x = x_infinity - x tau_x x_infinity = 1.0 -0.15 V + 50.0 + 1.0

Component: potassium_current

i_K = g_K n 4.0 V - V_K

Component: potassium_current_n_gate

alpha_n = 0.07 V - 55.0 1.0 - V - 55.0 -10.0 beta_n = 0.125 V - 45.0 -80.0 dd time n = n_infinity - n tau_n n_infinity = alpha_n 1.21 V + 78.71 alpha_n 1.21 V + 78.71 + beta_n 1.21 V + 78.71 tau_n = 1.0 0.08 alpha_n 1.21 V + 78.71 + beta_n 1.21 V + 78.71

Component: calcium_activated_potassium_current

i_K_Ca = g_K_Ca c 0.5 + c V - V_K

Component: leak_current

i_L = g_L V - V_L