RT Book, Section A1 Ash, Rick A1 Morton, David A. A1 Scott, Sheryl A. SR Print(0) ID 1141045657 T1 URINARY SYSTEM T2 The Big Picture: Histology YR 2017 FD 2017 PB McGraw-Hill Medical PP New York, NY SN 9780071477581 LK accessbiomedicalscience.mhmedical.com/content.aspx?aid=1141045657 RD 2024/11/07 AB The urinary system is composed of the kidneys, ureters, urinary bladder, and urethra. The kidney is a homeostatic filtering mechanism responsible for regulating body water, ions, and pH, as well as for excreting many soluble wastes from the blood. These functions center on the process of urine being produced by the kidneys followed by its elimination from the body via the ureters, bladder, and urethra.