心臟興奮電位傳導路徑之順序為何?
(A)SA node→Internodal pathway→AV node→His bundle→Purkinje system
(B)AV node→Internodal pathway→SA node→His bundle→Purkinje system
(C)SA node→Internodal pathway→AV node→Purkinje system→His bundle
(D)SA node→His bundle→AV node→Internodal pathway→Purkinje system