神经调节之膜电位变化比较.ppt

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1、神经纤维上电位变化的曲线图++++++++++++++++++++++++++++++++++----------------------------------++++++++++++++++++++++++++++++++++----------------------------------++++++++++++++++++++++++++++++++++----------------------------------++++++++++++++++++++++++++++++++++----------------------------------++++++

2、++++++++++++++++++++++++++++----------------------------------++++++++++++++++++++++++++++++++++----------------------------------++++++++++++++++++++++++++++----------------------------+++------+++++++++++++++++++++++++++++++----------------------------+++------++++++++++++++++++++++++++++

3、+++----------------------------+++------+++++++++++++++++++++++++++++++----------------------------+++------+++++++++++++++++++++++++++++++----------------------------+++------+++++++++++++++++++++++++++++++++++++----------------------------------下图表示受到刺激后的神经纤维上的电位变化曲线，相关叙述中正确的是（　　）A．a-b段的N

4、a +内流是需要消耗能量的B．b-c段的Na +外流是不需要消耗能量的C．c-d段的K +外流是不需要消耗能量的D．d-e段的K +内流是不需要消耗能量的Caabcde