title: The effects of drugs on Limulus cardioregulators.
mesh_terms: D000005:Abdomen / Q000294:innervation; D000109:Acetylcholine / Q000494:pharmacology; D000613:Aminobutyrates / Q000494:pharmacology; D000818:Animals; D003386:Brachyura; D003864:Depression, Chemical; D005724:Ganglia / Q000187:drug effects / Q000502:physiology*; D006321:Heart / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D010477:Perfusion; D010830:Physostigmine / Q000494:pharmacology; D010852:Picrotoxin / Q000494:pharmacology; D009435:Synaptic Transmission / Q000187:drug effects
chemical_list: D000109:Acetylcholine; D000613:Aminobutyrates; D010830:Physostigmine; D010852:Picrotoxin