Describe the functional anatomy of the spinal cord using these terms white and gray matter roots spinal nerves and tracts?

The spinal cord consists of both gray and white matter, where gray matter forms an H-shaped structure at the center, containing neuronal cell bodies, while white matter surrounds it, consisting of myelinated axons organized into tracts. The spinal cord is segmented into regions corresponding to spinal nerves that emerge from it via dorsal and ventral roots; the dorsal roots carry sensory information, and the ventral roots transmit motor signals. Spinal nerves, formed by the fusion of these roots, exit the vertebral column to innervate various body regions. The tracts within the white matter are responsible for ascending sensory and descending motor pathways, facilitating communication between the brain and the rest of the body.