Second, there are two ascending dorsal column tracts.

其次，脊髓背侧还有两条上行通路。

Brown-Sequard Syndrome is a condition associated with hemisection of spinal cord, which usually damages descending corticospinal tracts, ascending dorsal column tracts and spinothalamic tracts.

脊髓半切综合征，是一种与脊髓半切损伤相关的疾病，通常会损伤下行的皮质脊髓束、上行的脊髓背侧神经束与脊髓丘脑束。