The corticospinal tract, also known as the pyramidal tract, is one of the descending spinal tracts necessary for the passing of information from the central nervous system to the peripheral nervous system, particularly to musculature of the axial region of the body (the trunk) and distal regions (limbs and fingers/toes).This tract is said to represent the highest order of motor function in humans and is most directly in control of fine, digital movements. Many of this tract’s fibers that terminate on interneurons of the spinal cord, though, are responsible for reflexes. Of all the corticospinal fibers.

20% terminate at the thoracic levels 25% terminate at the lumbosacral levels 55% terminate at the cervical levels Just like many other major nerve tracts, the corticospinal tract can be divided into two sub-tracts: the lateral corticospinal tract and the ventral (anterior) corticospinal tract.