下列关于兴奋沿神经纤维向前传导的叙述中,正确的是A.膜内电流

下列关于兴奋沿神经纤维向前传导的叙述中,正确的是

A.膜内电流由非兴奋部位流向兴奋部位

B.膜外电流由兴奋部位流向非兴奋部位

C.神经纤维在未受到刺激时,膜内为负电荷

D.兴奋在细胞间的传导方向是树突→另一个神经元的轴突和细胞体

答案

C

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