联合纤维

联合纤维是连接同一大脑半球内皮质区域的轴突。[1]

在人类神经解剖学中，大脑中的轴突（神经纤维）可以根据它们的进程和连接方式归类为联合纤维，投射纤维和连合纤维。[1]

联合纤维将同一大脑半球的不同部分结合在一起，分为两种：（1）连接相邻脑回的短联合纤维； （2）长的联合纤维，可在较远的部分之间建立连接。


该图显示了大脑中联合纤维的主要系统。


脑皮和脑干的解剖显示去除了表层灰质后的联合纤维和脑岛皮层

内容
1 短联合纤维
2 长联合纤维
3 参考

短联合纤维
许多短的联合纤维（也称为弓形或“ U”形纤维）直接位于半球皮质的灰色物质之下，并将相邻的回旋连接在一起。[2] 一些从沟壁到另一壁。[2]

长联合纤维
较长的联合纤维连接更广泛的回头，并分成束。

扩散张量成像是研究联合纤维过程的一种非侵入性方法。

另见
中间神经元
Tractography

参考
Standring, Susan (2005). Gray's Anatomy: The Anatomical Basis of Clinical Practice (39th ed.). Churchill Livingstone. p. 411. ISBN 9780443071683. The nerve fibres which make up the white matter of the cerebral hemispheres are categorized on the basis of their course and connections. They are association fibres, which link different cortical areas in the same hemisphere; commissural fibres, which link corresponding cortical areas in the two hemispheres; or projection fibres, which connect the cerebral cortex with the corpus striatum, diencephalon, brain stem and the spinal cord.
Standring, Susan (2005). Gray's Anatomy: The Anatomical Basis of Clinical Practice (39th ed.). Churchill Livingstone. p. 411. ISBN 9780443071683. Association fibres may be either short association (arcuate or 'U') fibres, which link adjacent gyri, or long association fibres, which connect more widely separated gyri. Short association fibres may be entirely intracortical. Many pass subcortically betweena adjacent gyri, some merely pass from one wall of a sulcus to the other. Long association fibres are grouped into bunbles, ...