围产期哺乳动物心脏起搏器的功能性自主神经支配。
Functional autonomic innervation of mammalian cardiac pacemaker during the perinatal period.
作者信息
Vlk J, Vincenzi F F
出版信息
Biol Neonate. 1977;31(1-2):19-26. doi: 10.1159/000240938.
PMID:843549
Abstract
Sinoatrial node pacemaker tissues from perinatal and adult rabbits, guinea pigs and rats were examined in vitro. Changes in spontaneous pacemaker rate produced by stimulation of intranodal vagal and sympathetic nerve endings, were taken as a measure of functional postganglionic innervation of the pacemaker. Results show marked species differences in the development of functional innervation of the cardiac pacemaker in the perinatal period.
摘要
对围产期和成年兔、豚鼠及大鼠的窦房结起搏组织进行了体外研究。通过刺激结内迷走神经和交感神经末梢所产生的自发起搏频率变化，作为起搏点功能性节后神经支配的一项指标。结果显示，围产期心脏起搏点功能性神经支配的发育存在显著的物种差异。
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