0
five
Lumbar Nerves "L" (nerves in the lower back) supply the legs, the bladder, bowel and sexual organs.
cervical spinal nerves, thoracic spinal nerves, lumbar spinal nerves, sacral spinal nerves
L1-5. These nerves enter from the lumbar vertebrae of the lower back.
The spinal cord is enlarged in the cervical and lumbar regions, where the spinal nerves serving the limbs arise.