title: A light and transmission electron-microscopic study of the rat iris in pupillary dilation and constriction.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D003250:Constriction; D003593:Cytoplasm / Q000648:ultrastructure; D004106:Dilatation; D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure; D007498:Iris / Q000502:physiology / Q000648:ultrastructure*; D008854:Microscopy, Electron / Q000379:methods; D008916:Miotics; D009184:Mydriatics; D011680:Pupil / Q000502:physiology*; D051381:Rats
chemical_list: D008916:Miotics; D009184:Mydriatics