Sakson M E, Kukushkin N I, Tsintsadze M A
Biofizika. 1975 Jan-Feb;20(1):101-60.
Repeated responses (RR) of cat papillary muscle fibres have been studied. Threshold current of the occurrence of repeated responses (2t) and saturation current (Is) on the accomodation curve have been determined. Two zones of autooscillations were revealed according to the ratio brage from low levels of the membrane potential (-80 divided by -55 mv). The second RR zone (It is not equal to Is) was activated in more than 70 per cent of preparations in the average from higher levels of the membrane potential (-40 mv and higher). A comparison was carried out between muscle and specialized fibres RR. The experimental data were analysed by the method of phase plane.
对猫乳头肌纤维的重复反应(RR)进行了研究。确定了重复反应发生的阈值电流(2t)和适应曲线上的饱和电流(Is)。根据膜电位低水平(-80至-55毫伏)的比率范围,揭示了两个自激振荡区。平均而言,在超过70%的标本中,第二个RR区(It不等于Is)是在较高膜电位水平(-40毫伏及以上)时被激活的。对肌肉纤维和特殊纤维的RR进行了比较。采用相平面法对实验数据进行了分析。