extrapyramidal system, the part of the nervous system that includes the basal nuclei (e.g., substantia nigra, subthalamic nucleus), part of the midbrain, and the motor neurons of the spine. See also extrapyramidal tracts.
extrapyramidal system, the part of the nervous system that includes the basal nuclei (e.g., substantia nigra, subthalamic nucleus), part of the midbrain, and the motor neurons of the spine. See also extrapyramidal tracts.