It seems like you might be thinking of the urinary tract. This is a system of organs that produce, store, and eliminate urine.

The urinary tract includes:

* Kidneys: These organs filter waste products from the blood and produce urine.

* Ureters: Two tubes that carry urine from the kidneys to the bladder.

* Bladder: This muscular sac stores urine until it's ready to be eliminated.

* Urethra: This tube carries urine from the bladder out of the body.

Urology is the branch of medicine that deals with the diagnosis and treatment of disorders of the urinary tract in both men and women.

Let me know if you have any other questions about the urinary tract or urology!