心室肌细胞动作电位分为五期，由除极化过程和复极化过程所组成的。
分组处理4周后，记录和比较三组大鼠在体、离体心电图及心室肌细胞动作电位特征。
After treatment for 4 weeks, in vivo and in vitro ECG and characteristics of action potentials of ventricular muscles were recorded and compared.
目的：研究自发性高血压大鼠（SHR）左心室肌细胞动作电位时程延长的膜离子流基础。
Objective: To study the membrane ionic basis of action potential prolongation of hypertrophied left ventricular myocytes in spontaneously hypertensive rats (SHR ).
用浮置式细胞内微电极法引导在位灌流乌龟心脏心室肌细胞动作电位，观察高钾、高钙的单独作用及相互作用。
Using floating microelectrode, we have been able to record the action potential of ventricular cells of the tortoise and observed the effect of high potassium and high calcium on it.
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