颞顶枕区的纤维连接及功能的研究进展

Research Progress in Fiber Connectivity and Function of Temporo-parieto-occipital Region

颞顶枕区的白质纤维解剖结构复杂,可分为长纤维束和短纤维束,长纤维束一般涉及多个脑叶,且穿行路径较长,如上纵束、下纵束、中纵束、额枕下束。短纤维束穿行路径相对较短,也是长纤维束的组成部分。短纤维束有枕纵束、上纵束垂直部、颞顶束等。各神经纤维束的走行不同,颞顶枕区复杂的结构决定了白质纤维功能的复杂性。这些纤维不仅负责各脑叶或脑区信息的介导,还对各种信息进行整合。近年来,随着神经检测手段的提高,临床上可以更加清晰、直观地显示神经纤维的起止与走行,为临床及科研工作提供良好的条件并对疑难病的诊治有重要意义。

The white matter fibers passing through the temporoparietal occipital region have complex anatomy and can be divided into long fibers tract and short fibers tract according to the length of fibers anatomically.Long fibers generally involve multiple brain lobes and pass through the path,such as superior longitudinal fasciculus,inferior longitudinal fasciculus,middle longitudinal fasciculus,and inferior frontal occipital fasciculus.Short nerve fibers traverse a relatively short path and are also components of long fibers.The short fibers include the longitudinal occipital fasciculus,the vertical part of the superior longitudinal fasciculus,and the temporo-parietal fasciculus.The course of each nerve fiber tract is different,and the complex structure of the temporoparietal occipital region determines the complexity of white matter fiber function.These fibers are responsible for not only the mediation of information in each lobe or brain region,but also the integration of various information.In recent years,with the improvement of nerve detection means,the beginning and ending and course of nerve fibers can be more clearly and intuitively observed in clinical practice,which provides good conditions for the clinical and scientific research work and is of great significance for the diagnosis and treatment of difficult diseases.