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EFFECTS OF CALCIUM ION ON THE RISING PHASE OF THE ACTION POTENTIAL IN RABBIT SINOATRIAL NODE CELLS
1976
The Japanese Journal of Physiology
To clarify the role of Ca ion in the rising phase of the sinoatrial (S-A)node action potential,the sigmoidal relationship between the maximum rate of rise of the action potential and the maximum diastolic potential was examined at various concentrations of Ca.The membrane potential was changed by applying a current across a single sucrose gap.The sigmoidal curve shifted toward the positive potential without a change in maximum value when the Ca concentration was increased from nominal"zero"to
doi:10.2170/jjphysiol.26.93
fatcat:puc7uhwdpvcy7hqvdekpmdfvrm