what is urine used for in the body
Urine (from Latin Urina, ae, f .) is a liquid by-product of the body secreted by the kidneys through a process called urination (or micturition) and excreted through the urethra. Cellular metabolism generates numerous by-products, many rich in nitrogen, that require clearance from the bloodstream.rine varies in appearance, depending principally upon a body's level of hydration, as well as other factors. Normal urine is a transparent solution ranging from colorless to amber but is usually a pale yellow. In the urine of a healthy individual the color comes primarily from the presence of urobilin.