ACTIVITY OF BAROSENSITIVE NEURONS IN THE CAUDAL VENTROLATERAL MEDULLA THAT SEND AXONAL PROJECTIONS TO THE ROSTRAL VENTROLATERAL MEDULLA IN RABBITS

被引：64

作者：

TERUI, N ^{[1
]}

MASUDA, N ^{[1
]}

SAEKI, Y ^{[1
]}

KUMADA, M ^{[1
]}

机构：

[1] UNIV TOKYO, FAC MED, DEPT PHYSIOL, TOKYO 113, JAPAN

来源：

NEUROSCIENCE LETTERS | 1990年 / 118卷 / 02期

关键词：

Arterial baroreceptor reflex; Barosensitive neuron; Caudal ventrolateral medulla; Rabbit; Rostral ventrolateral medulla; Single neuronal activity;

D O I：

10.1016/0304-3940(90)90629-N

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

In urethane-anesthetized rabbits, we successfully recorded unit activity of four neurons in the caudal ventrolateral medulla (CVLM) that were excited by orthodromic stimulation of the aortic nerve and by antidromic stimulation of the rostral ventrolateral medulla (RVLM). The sum of mean onset latency of excitation to stimulation of the aortic nerve (37.5 ms) and mean conduction time of antidromic spikes (10.5 ms) was close to the mean onset latency of inhibition of reticulospinal neurons in the RVLM to stimulation of the aortic nerve (47.1 ms) as previously reported by us. Three of 4 neurons received excitatory input from carotid sinus baroreceptors as well. Our results provide strong evidence for the hypothesis that neurons in the CVLM subserve the arterial baroreceptor-sympathetic vasomotor reflex. © 1990.

引用

页码：211 / 214

页数：4

共 9 条

[1] INHIBITORY CARDIOVASCULAR FUNCTION OF NEURONS IN THE CAUDAL VENTROLATERAL MEDULLA OF THE RABBIT - RELATIONSHIP TO THE AREA CONTAINING AL NORADRENERGIC CELLS [J].