When the bladder fills with urine, sensory nerves send impulses to the brain indicating that the bladder is full. The sensory nerves connect with other nerves in the spinal cord to relay this information. In turn, the brain sends impulses back to the bladder instructing the bladder to empty its contents.
Reviewed last on: 10/4/2008
David R. Knowles MD, Scottsdale Urologic Surgeons, Scottsdale, AZ. Review provided by VeriMed Healthcare Network.