The document discusses the anatomy and function of the kidneys, ureters, bladder, and urethra. It describes the location of the kidneys in the retroperitoneal space and their blood supply. It also summarizes the internal anatomy of the kidneys including the cortex, medulla, lobes, and nephrons. Finally, it outlines the flow of urine from the kidneys through the ureters to the bladder and urethra, and the roles of the bladder, urethral sphincters, and micturition in urination.
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