胼胝体是人体中枢神经系统的一个组成部分。有人认为其起源于由大脑半球壁在终板前正中处增厚形成的Hochstetter’s联合板。长期以来,在众多的解剖学论著中,胼胝体一直被描述为“是一块位于大脑纵裂底部、由连合两大脑半球新皮质的纤维形成的致密的白质板”,此说作为一种传统的概念沿用至今。对于胼胝体的病变,则常常被笼统地描述为“可无令人注意的症状”,因此其功能也往往被看成是一种单纯的半球间连合系而为人所忽略。但是事实上,早在上一世纪Hamilton, D. J就对这种传统的概念提出了异议,他认为胼胝体主要是由一侧大脑皮质到对侧丘脑的交叉性纤维所 The corpus callosum is an integral part of the body’s central nervous system. It is thought to originate from Hochstetter’s co-plate formed by thickening of the cerebral hemispheric wall at the mid-anterior endplate. For many years, in numerous anatomical treatises, the corpus callosum has been described as “a dense white matter plate located at the base of the longitudinal cleft of the brain, consisting of fibers that bind the neocortex of the two cerebral hemispheres,” as a traditional The concept is still in use today. Lesions of the corpus callosum, which are often described as “unobtrusive symptoms,” are often overlooked because of their function as a mere hemisphere. In fact, however, as early as the last century Hamilton D.D objected to this traditional concept, in which he believed that the corpus callosum is composed mainly of cross-fibers from the cerebral cortex to the contralateral thalamus