TY - CHAP M1 - Book, Section TI - Motor Disorders A1 - Simon, Roger P. A1 - Aminoff, Michael J. A1 - Greenberg, David A. Y1 - 2017 N1 - T2 - Clinical Neurology, 10e AB - Normal motor function depends on the transmission of signals from the brain to the brainstem or spinal cord by upper motor neurons, and from there to skeletal muscle by lower motor neurons (Figure 9-1). A lesion that involves this pathway anywhere along its length may impair motor function. Anatomic structures involved in the regulation or execution of motor activity include the pyramidal and extrapyramidal systems, cerebellum, and lower motor neurons in the cranial nerve nuclei of the brainstem and anterior horns of the spinal cord. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - neurology.mhmedical.com/content.aspx?aid=1148741409 ER -