Urinary Bladder: Anatomy, Relations, and Clinical Significance
The urinary bladder is a hollow muscular organ that stores and expels urine. It is located in the lesser pelvis, separated from the pubic symphysis anteriorly. Its capacity ranges from 300–500 mL. The trigone, a smooth triangular area at its base, marks the openings of the two ureters and the internal urethral orifice.
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