The human body

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How does your body eliminate waste?

Humans can comfortably store urine for several hours using your bladder. The bladder can hold up to one pint and a half pints of urine. When the bladder is empty, it is about the size of a plum. When the bladder is full, it is about the size of a grapefruit. The muscle in they bladder wall is capable of great shrinking and stretching. Urine flows from your kidneys to your bladder through tubes called ureters. When the bladder is holding a lot of urine, a signal is sent to your brain through your nervous system telling you it is time to empty you bladder.

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The human body

By Aaliyah

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