glomerulus
For the most part the brain doesn't directly control the urinary system but their is some control over the rate of glomerular filtration by the sympathetic nervous system.
Circulatory system heart lungs and also Urinary system kidneys and liver
The urinary bladder of a person is what controls the urinary system. It is the sentence using the word urinary.
radiographic involving the urinary system is called;
The kidney is part of the excretory system, which removes the waste created in the body, in this case substances such as urea.
nephron
Nephrons, which contain loops of henle, are the filtering structures in the kidney.
From the blood via filtration in the kidneys
For the most part the brain doesn't directly control the urinary system but their is some control over the rate of glomerular filtration by the sympathetic nervous system.
The Urethra
Glomerulus
The kidneys
The urethra.
The bladder holds the urine 
The structures that are retroperitoneal in a cat's urinary system are the kidneys, the ureters, and the urinary bladder. Retroperitoneal means that these structures can be found behind the peritoneum.
The bladder.
Circulatory system heart lungs and also Urinary system kidneys and liver