来自六条半规管的输入信号在上颈髓中汇聚到不同颈部肌肉运动神经元的四种模式。

Four convergent patterns of input from the six semicircular canals to motoneurons of different neck muscles in the upper cervical cord.

作者信息

Shinoda Y, Sugiuchi Y, Futami T, Kakei S, Izawa Y, Na J

机构信息

Department of Physiology, School of Medicine, Tokyo Medical and Dental University, Japan.

出版信息

Ann N Y Acad Sci. 1996 Jun 19;781:264-75. doi: 10.1111/j.1749-6632.1996.tb15705.x.

DOI:10.1111/j.1749-6632.1996.tb15705.x

PMID:8694419

Abstract

This study was performed to investigate the pattern of input and the pathways from the six semicircular canals to motoneurons of various neck muscles in anesthetized cats. Intracellular postsynaptic potentials from neck motoneurons were recorded in response to electrical stimulation of the six ampullary nerves. The results showed that motoneurons of a particular neck muscle have a homogeneous convergent pattern of input from the six semicircular canals; there are four patterns of input from the six semicircular canals to motoneurons of various neck muscles; and the trisynaptic connection between the semicircular canal nerves and neck motoneurons was identified in addition to the disynaptic connection.

摘要

本研究旨在探讨麻醉猫中六个半规管的输入模式以及通向各种颈部肌肉运动神经元的通路。通过电刺激六条壶腹神经，记录颈部运动神经元的细胞内突触后电位。结果表明，特定颈部肌肉的运动神经元从六个半规管接收的输入具有均匀的汇聚模式；从六个半规管到各种颈部肌肉运动神经元的输入有四种模式；除了双突触连接外，还确定了半规管神经与颈部运动神经元之间的三突触连接。