Urinary continence is maintained by a muscular sphincter that surrounds the urethra as it exits the bladder.
Reviewed last on: 5/22/2008
Scott M. Gilbert, MD, Department of Urology, Columbia-Presbyterian Medical Center, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.