title: [Evolution and the origin of neurotransmitters].
mesh_terms: D000109:Acetylcholine / Q000378:metabolism; D000320:Adrenergic Fibers / Q000033:anatomy & histology; D000818:Animals; D005075:Biological Evolution; D002319:Cardiovascular System / Q000294:innervation; D002395:Catecholamines / Q000378:metabolism; D002415:Cats; D002799:Cholinergic Fibers / Q000033:anatomy & histology; D003391:Cranial Nerves / Q000033:anatomy & histology; D004064:Digestive System / Q000294:innervation; D006168:Guinea Pigs; D008168:Lung / Q000294:innervation; D009420:Nervous System / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000145:classification / Q000378:metabolism / Q000502:physiology*; D011817:Rabbits; D011956:Receptors, Cell Surface / Q000378:metabolism; D017981:Receptors, Neurotransmitter / Q000378:metabolism
chemical_list: D002395:Catecholamines; D018377:Neurotransmitter Agents; D011956:Receptors, Cell Surface; D017981:Receptors, Neurotransmitter; D000109:Acetylcholine