title: Role of cyclic nucleotides in excitable cells.
mesh_terms: D000818:Animals; D001048:Aplysia; D002118:Calcium / Q000502:physiology; D002531:Cerebellum / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology; D005728:Ganglia, Sympathetic / Q000502:physiology; D008564:Membrane Potentials; D009132:Muscles / Q000502:physiology*; D009411:Nerve Endings / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D009712:Nucleotides, Cyclic / Q000502:physiology*; D013570:Synaptic Membranes / Q000502:physiology
chemical_list: D009712:Nucleotides, Cyclic; D002118:Calcium