Labels:auditorium | chair | cinema | crt screen | light | monitor | screen | seat | stairs OCR: Blood flaws into each kidney Urine passes down the ureter to the bladder, where stored When the bladder full, messages sent to the brain tell you to go to the toilet. You relax the muscle in the bladder and urine leaves your body The kidneys filter the blood Exit and produce urine from excess water and urea flows
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