title: Effects of morphine on internally perfused squid giant axons.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001369:Axons / Q000187:drug effects* / Q000502:physiology; D003864:Depression, Chemical; D004553:Electric Conductivity / Q000187:drug effects; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects*; D008974:Mollusca; D009020:Morphine / Q000494:pharmacology*; D010477:Perfusion; D011188:Potassium / Q000502:physiology; D011955:Receptors, Drug; D012964:Sodium / Q000502:physiology
chemical_list: D011955:Receptors, Drug; D009020:Morphine; D012964:Sodium; D011188:Potassium