title: The influence of extracellular Ca2+ concentration on the inhibitory effect of adenosine in guinea-pig ileal longitudinal muscles.
mesh_terms: D000109:Acetylcholine / Q000378:metabolism; D000241:Adenosine / Q000494:pharmacology*; D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004558:Electric Stimulation; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects / Q000294:innervation; D066298:In Vitro Techniques; D008297:Male; D009020:Morphine / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects*
chemical_list: D009020:Morphine; D000241:Adenosine; D000109:Acetylcholine; D002118:Calcium