sinus node cell action potential 窦房结细胞动作电位
Objective To explore a noninvasive transesophageal signal averaging technique for direct recording of sinus node potential (SNP).
目的：探讨无创性经食管信号叠加直接记录窦房结电位（SNP）的技术。
Methods Conventional microelectrode and patch clamp techniques were used to record the PTH-induced changes of action potential and pacemaker current If in the rabbit sinus node.
方法运用微电极、膜片箝技术，记录PTH对家兔自律性动作电位和兔起搏离子流的影响。
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