Urine is formed in the kidneys through filtration of blood. Urine is then passed through the ureters to the bladder, where it is stored and expelled from the body by urination (voiding). The purpose of the urinary system is to eliminate wastes from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH.
The urinary system consists of several organs, it processes our body waste and toxins, and is prone to infections and disorders. Some are easy to treat, other may require surgery.
Parts of the urinary system
The Kidneys – the main organ of the urinary system. The kidneys process blood, filtering it from waste and excess water, which are turned to urine. The urine is then stored in the bladder.
The bladder – a balloon-like organ that stores the urine. The bladder is held in place by ligaments. The urine is stored in the bladder until the brain signals that the bladder is ready to be emptied (usually when it is almost full). The bladder’s capacity in a healthy person is about half a liter of urine, which is usually stored for 3-5 hours at a time (during waking hours). The bladder’s exit to the urethra is held shut by circular muscles closing it firmly.
The Urethra – The tube that leads the urine out of the body. It leads from the bladder to the outer opening, and is different for males and females.
Each organ of the urinary system may undergo medical disorders.