摘要
作者应用悬浮微电极,以传统们微机两法,测定了鳝、鲢鱼、蛙、蟾蜍、龟、鳖、鸽、小鼠、大鼠、豚鼠、兔、羊、牛、猫、猪、犬、猴及衍生大鼠、培养乳鼠等17种动物的19种动心肌细胞动作电位。报道了这些动物心室肌细胞动作电位的正常值,并对动作电位的形态及参数作了比较。
The authors employed a modified type of floating microelectrode to measure the action potentials of left ventricular muscle cells in situ of 17 species of animals. The experimental results are: body weight 100～15000(g), HR 16～350(b/Min), APA43±10～115±4(my), RP-30±7～82±7(mv),OS12±5～34±9(my), APD_(90)110±6～1432±48 (ms), Vmax10±3～503±59(v/s) ERP 121±4 (ms) (Oryctolagus cuniculus), 239±35(ms) (Capra nircus)The waveforms of action potentials of seventeen species of animals are typical. They have nothing to do with the level of evolution. The maximum rate of rise of the action potential (Vmax) of rat is related to the development level, i.e. adult rat>young rat>cultured heart cell from newborn rat ventricle.
出处
《泸州医学院学报》
1991年第1期14-19,共6页
Journal of Luzhou Medical College
关键词
心肌
动作电位
鱼纲
鸟纲
哺乳纲
Myocardium
Action potentials
Fishes
Birds
Mammals
Amphibia
