The urinary bladder is the hollow muscular organ in the pelvis that collects and stores urine excreted by the kidneys, until it is expelled by urination. Urine enters the bladder via the ureters and exits via the urethra.
The urinary bladder usually holds 300-500 ml of urine in adults. As urine accumulates, the wall of the bladder thins as it stretches, allowing the bladder to store larger amounts of urine without a significant rise in internal pressure.
Disorders of the bladder treated by Dr Timothy Nathan include: