The human body makes ammonia when it breaks down protein into amino acids. The liver then converts ammonia into urea before it leaves the body through urine or sweat. Older research in a 2021 ...

The ureters are tubes that carry urine from the kidneys to the bladder, whereas the urethra is the tube that carries urine out of the body. Urine contains water, urea and salts. Urea is produced ...

It is highly toxic and cannot be allowed to accumulate in the body. Excess ammonia is converted to urea. Urea and water are released from the liver cells in to the bloodstream and transported to ...