Conduction pattern of excitation in the amphibian atrium assessed by multiple-site optical recording of action potentials.
Conduction pattern of excitation in the amphibian atrium assessed by multiple-site optical recording of action potentials.
复制标题
通过动作电位的多位点光学记录评估两栖动物心房的兴奋传导模式。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
K. Kamino
中科院分区：
文献类型：
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作者：
H. Komuro;T. Sakai;A. Hirota;K. Kamino
使用电压敏感的部花青-绕丹宁染料和 100 元件光电二极管矩阵阵列从牛蛙心房的多个部位监测自发动作电位，并且我们评估了起搏器的激发的传播。通过对与动作电位相关的光信号的启动进行计时来获得传导的等时曲线：我们构建了传播图。兴奋波似乎从起搏区在心房上呈放射状传导，左心房的传导速度超过右心房。
Spontaneous action potentials were monitored from multiple sites in the bullfrog atrium using a voltage-sensitive merocyanine-rhodanine dye together with a 100-element photodiode matrix array, and we have assessed the spread of the excitation from the pacemaker. Isochrone curves of conduction were obtained by timing the initiation of the action potential-related optical signals: we constructed maps of the spread. Excitatory waves appeared to conduct radially from the pacemaking area over the atrium, and the conduction velocity in the left atrium exceeded that in the right atrium.