urinary bladder

The urinary bladder is a muscular organ in the pelvis that stores urine produced by the kidneys. It acts as a reservoir, holding urine until you are ready to urinate. The bladder's walls stretch as it fills, and when it reaches a certain level, nerves signal the brain, creating the urge to urinate. During urination, the bladder's muscles contract, and the urine is expelled through the urethra. It plays a vital role in removing waste and maintaining fluid balance in the body in a controlled and voluntary manner.