title: Nature of the morphine receptor present in the squid axon.
mesh_terms: D000818:Animals; D001369:Axons / Q000187:drug effects*; D049832:Decapodiformes; D004553:Electric Conductivity / Q000187:drug effects; D007700:Kinetics; D009019:Morphinans / Q000494:pharmacology*; D009020:Morphine / Q000037:antagonists & inhibitors; D009270:Naloxone / Q000494:pharmacology*; D011188:Potassium / Q000378:metabolism; D011955:Receptors, Drug; D012964:Sodium / Q000378:metabolism
chemical_list: D009019:Morphinans; D011955:Receptors, Drug; D009270:Naloxone; D009020:Morphine; D012964:Sodium; D011188:Potassium