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What Is The Role Of Liver As Excretory Organ?

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Central station for metabolism
Liver is the central station of metabolism and consequently the body's central metabolic clearing house. Liver supports the excretory role of the kidney by detoxifying many chemicals poisons and produce ammonia, urea and uric acid from the nitrogen of amino acid. Removal of salts with water by the sweat glands and of serum by sebaceous glands seems to be excretory in nature. The removal of water and salts from sweat glands is for protection against micro-organism. Therefore skin may not be considered as an excretory organ.
Urea cycle
Urea is the principal excretory product and liver form it from the waste nitrogen. The metabolic pathways involved in the production of urea are termed as urea cycle. Two ammonia and one carbon dioxide molecules are shunted into the cycle to generate one molecule of urea.
Homoeostasis importance of liver
Liver is not only involved in the synthesis of nitrogenous wastes to assist kidney in their disposal, but also have numerous crucial functions of homoeostasis importance e.g. synthesis, storage, conversion, recycling and detoxification.

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