Physiology of the heart of Eoperipatus weldoni (Onychophora).
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001181:Arthropods / Q000502:physiology*; D003864:Depression, Chemical; D004837:Epinephrine / Q000494:pharmacology; D006321:Heart / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D006632:Histamine / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D007552:Isotonic Solutions; D013268:Stimulation, Chemical
D007552:Isotonic Solutions; D006632:Histamine; D000109:Acetylcholine; D004837:Epinephrine