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乙酰膽堿
兒童疾病

        膽堿能神經介質,已能人工合成,作用于M膽堿受體和N膽堿受體,產生毒蕈堿(M)樣和煙堿(N)樣作用。①M樣作用:以臟器平滑肌、腺體的興奮為主要癥狀,表現為瞳孔縮小、支氣管痙攣、呼吸道分泌物增多,引起呼吸困難、肺水腫及呼吸衰竭;胃腸道平滑肌興奮,出現惡心、嘔吐、腹痛、腹瀉;腺體分泌亢進,表現流涎多    (共 331 字)     [閱讀本文] >>

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