Neuroanatomy, Pyramidal Tract Lesions
The central nervous system (CNS) is a complex network of components that allow an organism to interact with its environment. It is made up of multiple different parts, each of which plays a different role. Primarily, the CNS is formed by the upper motor neurons (UMN) which carry signals for movement down to the lower motor neurons (LMN) which signal the muscles to either contract or relax.
Lohia A, McKenzie J. Neuroanatomy, Pyramidal Tract Lesions. [Updated 2022 Jul 25]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-.