大鼠白交通支节前和节后交感神经活动

Pre- and postganglionic sympathetic activity in white rami of rats.

作者信息

Hayes K, Chevendra V, Weaver L C

机构信息

John P. Robarts Research Institute, London, Ont., Canada.

出版信息

Neurosci Lett. 1990 Jul 17;115(1):55-61. doi: 10.1016/0304-3940(90)90517-d.

DOI:10.1016/0304-3940(90)90517-d

PMID:2216057

Abstract

Multifiber sympathetic activity was recorded from the central end of severed 13th thoracic communicating rami in urethane-anesthetized rats before and after ganglionic blockade by chlorisondamine. Ganglionic blockade decreased nerve discharge by 49 +/- 10% (n = 7) indicating that these rami are composed of postganglionic axons (other than gray rami fibers) as well as preganglionic axons. Histological examination of excised T13 rami showed that postganglionic cell bodies are located along the course of these nerves.

摘要

在氯异吲哚铵进行神经节阻断前后，从氨基甲酸乙酯麻醉的大鼠第13胸交感神经交通支切断端的中枢端记录多纤维交感神经活动。神经节阻断使神经放电减少49±10%（n = 7），表明这些交通支由节后轴突（除灰交通支纤维外）以及节前轴突组成。对切除的第13胸神经交通支进行组织学检查显示，节后细胞体沿这些神经的走行分布。