问题
单项选择题 案例分析题
心肌细胞每一次动作电位可分5个时相，每一个时相都有离子流的变化。在心电图上，有相应的改变。
动作电位2相是指（）。
A.心肌快速复极初期
B.心肌缓慢复极期
C.心肌静息期
D.心肌快速复极末期
E.心肌除极过程
答案
参考答案：B
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心肌细胞每一次动作电位可分5个时相，每一个时相都有离子流的变化。在心电图上，有相应的改变。
动作电位2相是指（）。
A.心肌快速复极初期
B.心肌缓慢复极期
C.心肌静息期
D.心肌快速复极末期
E.心肌除极过程
参考答案：B
| 阅读理解。 | ||||||||||
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