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电传导是心肌组织的生理学基本特性之一
了解心脏的正常以及异常电传导
有助于提高我们对心律失常发病机制的认识水平。本文介绍心脏电传导基本原理以及相关临床电生理现象的解释。一.传导性的定义及电生理基础心脏的兴奋性是指单个细胞发生除极产生动作电位的过程
而心脏的电传导是指电激动在心肌组织间扩布的现象
该过程可简单概括为上游兴奋区细胞将激动扩布至下游静息细胞。微观上
当单个细胞兴奋时
该细胞产生的局部电流可激动周围未兴
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