DIFFERENCE IN GLOSSOPHARYNGEAL AND PHRENIC INSPIRATORY ACTIVITIES OF RATS DURING HYPOCAPNIA AND HYPOXIA

被引：19

作者：

FUKUDA, Y

机构：

[1] Department of Physiology II, School of Medicine, Chiba University, Chiba

来源：

NEUROSCIENCE LETTERS | 1992年 / 137卷 / 02期

关键词：

INSPIRATORY ACTIVITY; GLOSSOPHARYNGEAL NERVE; PHRENIC NERVE; RESPIRATORY RHYTHM; HYPOCAPNIA; HYPOXIA; RAT;

D O I：

10.1016/0304-3940(92)90418-7

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Inspiratory (I) activities of glossopharyngeal (IX) and phrenic (Phr) nerves were compared during hypocapnia or hypoxia in the urethane anesthetized and carotid deafferented rat. Hypoxic or hypocapnic suppression of I activity was smaller in the IX than in the Phr nerve. A small ramp like rhythmic IX activity was seen even in the absence of Phr discharge during hypocapnia or hypoxia. Respiratory rhythmicity may be better recognized by IX motoneuron activity during suppression by altered chemical stimuli.

引用

页码：261 / 264

页数：4

共 20 条

[1] VISCEROTOPIC REPRESENTATION OF THE UPPER ALIMENTARY-TRACT IN THE MEDULLA-OBLONGATA IN THE RAT - THE NUCLEUS AMBIGUUS [J].