Functions of the Urinary System

Functions of the Urinary System

Urinary System The kidneys are the primary organs of excretion. Excretion is the removal of metabolic wastes from the body. People sometimes confuse the terms excretion and defecation, but they do not refer to the same process. Defecation, the elimination of feces from the body, is a function of the digestive system. Excretion, on the other hand, is the elimination of metabolic wastes, which are the products of metabolism. For example, the undigested food and bacteria that make up feces have never been a part of the functioning of the body, while the substances excreted in urine were once metabolites in the body. Functions of the Urinary System The urinary system produces urine and conducts it to outside the body. As the kidneys produce urine, they carry out four functions: excretion of metabolic wastes, maintenance of water-salt balance, maintenance of acid-base balance, and secretion of hormones.Excretion of Metabolic WastesThe kidneys excrete metabolic wastes, notably nitrogenous...
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