Depolarisation and repolarisation sequences of ventricular epicardium in chickens (Gallus gallus domesticus)

被引：8
|
作者：
Kharin, SN [1 ]
机构：
[1] Russian Acad Sci, Inst Physiol, Dept Visceral Physiol, Syktyvkar 167982, Russia
来源：
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY | 2004年 / 137卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
activation sequence; depolarisation; epicardium; potential mapping; recovery sequence; repolarisation; ventricles of heart; bird;
D O I：
10.1016/j.cbpb.2003.10.007
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Activation and recovery sequences were mapped by means of 64-channel synchronous recording of extracellular potentials on ventricular epicardium in chickens. Ventricular epicardium was depolarized due to multiple breakthroughs. The recovery of ventricular epicardium occurs from the apex to the base of heart and does not repeat the activation sequence. Gradients of repolarisation exist over the ventricular epicardium in birds. Repolarisation pattern of ventricular epicardium depends primarily on intrinsic spatial heterogeneities of ARIs over epicardium. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码：237 / 244
页数：8
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