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单词 pyramidal tract
释义

pyramidal tract

英汉-汉英词典
[医]锥体束;锥体径
词组 | 习惯用语
您要查找的是不是:
    Pyramidal Tract Signs 锥体束迹象
    pyramidal tract neurons 锥体束神经元
    pyramidal tract system 锥体束系
    ventral pyramidal tract 锥体腹侧束
    pyramidal tract disease 锥体束病变
    direct pyramidal tract 锥体直束;翻译
    lateral pyramidal tract 锥体侧束;翻译
pyramidal tract [解剖] 锥体束;锥体径
crossed pyramidal tract 交叉锥体束
anterior pyramidal tract 前锥体束
中文百科

锥体束 Pyramidal tracts

(重定向自Pyramidal tract)
Medulla spinalis - tracts - English.svg

皮层脊髓束英语:Corticospinal tract,又称皮质脊髓路径皮质脊髓束皮质脊髓径),又称锥状束(pyramidal tract),为一种大脑皮质及脊髓间大量聚集之轴突集结。皮质脊髓束大部份由运动神经之轴突组成。事实上脊髓中有两种束状结构(路径):一为侧皮质脊髓束,另一为前皮质脊髓束。这些束状路径解释了为何身体大部分的同侧功能是由相反侧之脑部所掌管。皮质延髓径(corticobulbar tract)也被认为是锥状束(径)中的一种。

皮质延髓束(径)处理脑神经核通往运动神经的信号,而非脊髓通往运动神经的部份。

英语百科

Pyramidal tracts 锥体束

(重定向自Pyramidal tract)
Horizontal section through the lower part of the pons, showing the fibers of the corticospinal tract (#19) passing through the pontine nuclei
Medulla spinalis - tracts - English.svg

The pyramidal tracts include both the corticospinal and corticobulbar tracts. These are aggregations of upper motor neuron nerve fibres that travel from the cerebral cortex and terminate either in the brainstem (corticobulbar) or spinal cord (corticospinal) and are involved in control of motor functions of the body.

近义、反义、联想词
近义词
n.
motor nerve, efferent nerve, efferent

英英词典
pyramidal tract n.
  1. any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral horn of the spinal cord

  2. synonymous: pyramidal motor system, corticospinal tract
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更新时间:2025/6/23 1:15:14