问题 单项选择题 A1型题

毛果芸香碱引起调节痉挛的作用是通过以下哪一受体()

A.虹膜括约肌上的M受体

B.虹膜辐射肌上的α受体

C.睫状肌上的M受体

D.睫状肌上的α受体

E.虹膜括约肌上的N2受体

答案

参考答案:C

单项选择题
阅读理解

阅读理解。

     根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

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