The spinal cord is not a uniform cable. It is a segmented switchboard, where 31 pairs of spinal nerves exit at specific levels to serve distinct territories of the body. Understanding this dermatome and myotome map is essential for neurology, pain management, and rehabilitation. The Segments (Cervical to Coccygeal) The map is divided into five regions, numbered from top to bottom:
Use this map to trace symptoms back to their spinal source. spinal cord nerve map
