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37安静时,给兔M受体阻断剂阿托品可引起心率明显增加,房室传导加速,若切断双侧迷走神经后再给阿托品,心脏的变化为:( )
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37安静时,给兔M受体阻断剂阿托品可引起心率明显增加,房室传导加速,若切断双侧迷走神经后再给阿托品,心脏的变化为:( )
A、心率明显增快
B、心率明显降低
C、心率无明显变化
D、房室传导明显减慢
时间:2021-09-06 21:06
关键词:
青书学堂
遵义医科大
20级临床
生理学
答案解析
C
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