HH模型 dv/dt=(Istim-lion(V, mca, hICa, h2Ca, nK, [Ca2+D)/ dmNa dt=(mNaoo(V)-mNa/tmNa(v) Na/dt=(hNaoo(V)-hNa)thNa(v) dmca dt=(mcao(V)-mca)/imCa(v) lICa/dt=(hCaoo(V)-hICa)/thCa(v) dh2Ca/dr=(hcaoo(V)-h2ca)/hca(v) dnl/dt=(nkloo(V)-nk1)/tnk(v) dnk,/dt=(nK2oo(V)-nk2)/tnk2(v) dhi/ dt=(hkloo()-hKd/tkI(V) d[cat]i/dt=fe(alca(v,mca, hICa, h2Ca, [Ca2+li) Kca[ca+]a (19)HH模型