title: On the influence of low extracellular calcium level on the contractility and ultrastructure of smooth muscle cells of ileum and colon.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D002118:Calcium / Q000378:metabolism*; D003106:Colon / Q000502:physiology / Q000648:ultrastructure; D005110:Extracellular Space / Q000378:metabolism*; D006168:Guinea Pigs; D007082:Ileum / Q000502:physiology / Q000648:ultrastructure; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000648:ultrastructure*
chemical_list: D000109:Acetylcholine; D002118:Calcium