Spinal segments are the individual sections of the spine, which is divided into three main regions: the cervical, thoracic, and lumbar regions. Each spinal segment consists of a pair of spinal nerves that emerge from the spinal cord and are responsible for transmitting signals between the brain and the rest of the body. There are a total of 31 spinal segments in humans. Each spinal segment is associated with specific areas of the body, providing sensory and motor functions. For example, the cervical segments control movements and sensations in the neck and arms, while the lumbar segments are linked to the lower back and legs. Understanding spinal segments is essential for diagnosing and treating neurological conditions.