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取出枪乌贼的粗大神经纤维进行如图所示的实验将电位计的两个微型电极ab分别置于神经纤维膜外同时在c处给以一个强刺激电位计的指针将 Template






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sketch 5313 Katy Perry by Monalisa Theresia
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tomski取出枪乌贼的粗大神经纤维进行如图所示的实验将电位计的两个微型电极ab分别置于神经纤维膜外同时在c处给以一个强刺激电位计的指针将 coloring
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取出枪乌贼完整无损的粗大神经纤维并置于适宜环境中进行如下图所示的实验G表示灵敏电流计ab为两个微型电极阴影部分表示开始生局部电流的 sketch template
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学家利用枪乌贼体内的巨大轴突进行实验（如图1），记录在不同钠离子浓度的盐溶液中受到刺激后产生的电位变化（如图2），下列分析错误的是（ ） 百度教育 sketch template
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枪乌贼神经纤维是研究兴奋产生和传导的常用材料。当在 高途 sketch template
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学家所做实验先枪乌贼神经纤维里注入微量的放射性同位素24Na 不久可测得神经纤维围溶液中存在24Na 如果在神经纤维膜外溶液中先 sketch template
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神经冲动在神经纤维上是以局部电流的形式传导的将连接灵敏电流计的导线两端分别置于神经纤维的外表面和内部可测量神经纤维膜内外电位变化图1所示 sketch template
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为研究兴奋的传导和传递学家先后进行了以下实验实验一以枪乌贼的巨轴突为测试对象将某电表的一电极插入轴突膜内另一电极置于膜外电表指针 sketch template
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以枪乌贼的粗大神经纤维作材料如右图所示在神经纤维的表面放置两个相距2 3厘米的电极a和b在图中的刺激点给予较强的电刺激依据观测到的 sketch template
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I、为研究高等动物的神经调节，学家进行了相关实验。请回答下列有关问题。 1在蛙的坐骨神经表面放置两个电极，连接到一个电位表上。静息时 sketch template
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取出枪乌贼的粗大神经纤维进行如图所示的实验将电位计的两个微型电极ab分别置于神经纤维膜外同时在c处给以一个强刺激电位计的指针将 sketch template
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如图表示枪乌贼离体神经纤维在Na 浓度不同的两种海水中受刺激后的膜电位变化情况下列描述错误的是 A曲线a代表正常海水中膜电位的变化 B sketch template
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