[Proceedings: Tension increasing response to histamine and Ca participation in the depolarized smooth muscle].
D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D006168:Guinea Pigs; D006632:Histamine / Q000494:pharmacology*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*
D006632:Histamine; D002118:Calcium