title: The role of cyclic AMP in visual excitation.
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism*; D000628:Aminophylline / Q000494:pharmacology; D000818:Animals; D001001:Anura; D003386:Brachyura; D001921:Brain / Q000201:enzymology; D002247:Carbon Isotopes; D002417:Cattle; D000242:Cyclic AMP / Q000378:metabolism* / Q000494:pharmacology; D003624:Darkness; D004072:Digitonin / Q000494:pharmacology; D004553:Electric Conductivity; D008027:Light; D010786:Photoreceptor Cells / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism; D011494:Protein Kinases / Q000378:metabolism; D051381:Rats; D012160:Retina / Q000201:enzymology / Q000378:metabolism*; D012168:Retinal Pigments / Q000378:metabolism*; D012589:Sciuridae; D012964:Sodium / Q000378:metabolism; D013045:Species Specificity; D014785:Vision, Ocular / Q000187:drug effects*
chemical_list: D002247:Carbon Isotopes; D012168:Retinal Pigments; D000628:Aminophylline; D012964:Sodium; D000242:Cyclic AMP; D011494:Protein Kinases; D000262:Adenylyl Cyclases; D004072:Digitonin