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 【實驗目的】觀察擬膽堿藥、抗膽堿藥和擬腎上腺素藥對瞳孔及對光反射的作用。【實驗原理】虹膜括約肌受副交感神經(jīng)支配,此神經(jīng)興奮或應用擬膽堿藥時瞳孔縮小,應用抗膽堿藥時瞳孔擴大。虹膜輻射肌受交感神經(jīng)支配,此神經(jīng)興 (共 706 字) [閱讀本文] >>