Spinal cord

The spinal cord is an elongation of the brain, with the composition of white and gray matter. The dorsal part is involved in processing of sensory information received by sensory neurons located in the dorsal root ganglia. The ventral part contains motor neurons. The spinal cord is organized in cervical (C1-C7), thoracic (T1-T12) and lumbar (L1-L5) segments. Each segment receives sensory information from and generate motor output to its corresponding body segment.