家兔在显著和有害刺激后耳部和尾部血流的同步变化。

Synchronous changes in ear and tail blood flow following salient and noxious stimuli in rabbits.

作者信息

Nalivaiko E, Blessing W W

机构信息

Departments of Physiology and Medicine, Center for Neuroscience, Flinders Medical Center, Flinders University, Bedford Park, Australia.

出版信息

Brain Res. 1999 Nov 20;847(2):343-6. doi: 10.1016/s0006-8993(99)02080-6.

DOI:10.1016/s0006-8993(99)02080-6

PMID:10575106

Abstract

Simultaneous recordings were made of ear and tail blood flow during alerting responses to salient environmental stimuli in conscious rabbits, and during electrical stimulation of the spinal trigeminal tract and raphe pallidus in anesthetized rabbits. Blood flow fell in a highly correlated manner (Pearson coefficient ranging from 0.52 to 0.95) in these experimental situations. Salient stimuli in conscious rabbits, and noxious stimuli in anesthetized rabbits appear to cause a generalized vasoconstriction in cutaneous beds.

摘要

在清醒兔对显著环境刺激的警觉反应期间，以及在麻醉兔的三叉神经脊髓束和中缝苍白核进行电刺激期间，同时记录了耳部和尾部的血流情况。在这些实验情况下，血流以高度相关的方式下降（皮尔逊系数范围为0.52至0.95）。清醒兔的显著刺激以及麻醉兔的有害刺激似乎会导致皮肤床的全身性血管收缩。