详细解释:【医】 皮质脊髓束
英语解释：
名词 corticospinal tract:
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同义词：pyramidal tract, pyramidal motor system, corticospinal tract