Definition:
urinary tract (YOOR-ih-NAYR-ee trakt)
The organs of the body that produce and discharge urine. These include the kidneys, ureters, bladder, and urethra.
Enlarge 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.

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.

Enlarge 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.

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.