pyramidal motor system

1. The clinical features of BD was gradual decline of brainpower, orientation obstacle, characteristic changes, pseudobulbar palsy, manifestation of pyramidal and extrapyramidal motor system damages.
   BD临床特征：进行性加重的智能衰退，定向力障碍及人格改变，假性延髓麻痹征，锥体系及锥体外系损害的表现。

noun

1. 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 root of the spinal cord

   Synonym:    pyramidal tractcorticospinal tract