一、心脏的快反应细胞与慢反应细胞心脏内不同部位细胞的跨膜电位,包括静息电位和动作电位并不完全相同,大体上可分为两类细胞,即快反应细胞和慢反应细胞。快反应细胞包括心房特殊传导组织(房间束和结间束)、心房肌、心室特殊传导组织(房室束、房室束支和浦肯野纤维以及心室肌细胞)。这些细胞膜电位 First, the rapid heart reaction cells and slow response cells in different parts of the heart cells within the transmembrane potential, including resting potential and action potential are not exactly the same, can be divided into two types of cells in general, fast response cells and slow response cells . Fast response cells include atrial specific conduction tissue (atrioventricular and intercostal bundles), atrial muscle, ventricular special conduction tissue (atrioventricular bundle, atrioventricular bundle and Purkinje fibers, and ventricular myocytes). These cell membrane potentials