title: Muscarinic cholinergic and preganglionic physiological stimulation increase cyclic GMP levels in guinea-pig superior cervical ganglia.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology*; D002217:Carbachol / Q000494:pharmacology*; D006152:Cyclic GMP / Q000378:metabolism*; D004558:Electric Stimulation; D005727:Ganglia, Spinal / Q000187:drug effects / Q000378:metabolism*; D006168:Guinea Pigs; D009638:Norepinephrine / Q000494:pharmacology*
chemical_list: D001285:Atropine; D002217:Carbachol; D006152:Cyclic GMP; D009638:Norepinephrine