The bladder is a balloon-shaped muscle that serves as the storage pouch for urine. Urine flows from the bladder through the urethra to the outside of the body.

The bladder is part of the urinary tract, along with the kidneys, ureters, and the urethra.

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerAvery L. Seifert, MD - Urology
Last RevisedJune 28, 2010

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