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The bladder's only real function is urine storage. It accomplishes this effectively through it's design. There are tight junctions between the cells of the bladder lining which are waterproof and prevent urine from seeping into the surrounding tissues. The kidneys filter the blood, removing toxins, metabolites, excess water, excess sodium and mainly urea from the blood and send it to the bladder for storage until evacuation is possible. The urethra carries urine from the bladder and out of the body.

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13y ago

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