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urinary system

(YOOR-ih-NAYR-ee SIS-tem)
The organs that make urine and remove it from the body. The urinary system is divided into two parts. The upper urinary system includes the kidneys and ureters. The lower urinary system includes the bladder and urethra. The kidneys remove waste and extra fluid from the blood to make urine. The urine flows from the kidneys through the ureters to the bladder. It is stored in the bladder until it leaves the body through the urethra. Also called urinary tract.
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Anatomy of the male urinary system; shows the right and left kidneys, the ureters, the bladder filled with urine, and the urethra passing through the penis. The inside of the left kidney shows the renal pelvis. An inset shows the renal tubules and urine. Also shown is the prostate.Enlarge this image in new window
Anatomy of the male urinary system showing the kidneys, ureters, bladder, and urethra. Urine is made in the renal tubules and collects in the renal pelvis of each kidney. The urine flows from the kidneys through the ureters to the bladder. The urine is stored in the bladder until it leaves the body through the urethra.
Anatomy of the female urinary system; shows the right and left kidneys, the ureters, the bladder filled with urine, and the urethra. The inside of the left kidney shows the renal pelvis. An inset shows the renal tubules and urine. The uterus is also shown.Enlarge this image in new window
Anatomy of the female urinary system showing the kidneys, ureters, bladder, and urethra. Urine is made in the renal tubules and collects in the renal pelvis of each kidney. The urine flows from the kidneys through the ureters to the bladder. The urine is stored in the bladder until it leaves the body through the urethra.
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