title: Excitation of photoreceptors. A review.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001181:Arthropods / Q000502:physiology; D055592:Biophysical Phenomena; D001703:Biophysics; D055598:Chemical Phenomena; D002621:Chemistry; D008027:Light; D008974:Mollusca / Q000502:physiology; D010786:Photoreceptor Cells / Q000502:physiology*; D012168:Retinal Pigments / Q000502:physiology; D009435:Synaptic Transmission; D014714:Vertebrates / Q000502:physiology; D014785:Vision, Ocular
chemical_list: D012168:Retinal Pigments