GENERAL HISTOLOGY

Detailed explanation-1: -Two major nitrogenous waste products, urea and ammonium (NH(4)(+)), are produced in humans when proteins are oxidized, and in this manuscript their excretions are examined from two perspectives.

Detailed explanation-2: -Urea is produced as a waste product by the breakdown of unused proteins in the liver. Our bodies must eliminate these waste materials because their accumulation is poisonous and harmful to us. In the form of urine, our kidneys excrete urea, waste salts, and excess water from the blood (a yellowish liquid).

Detailed explanation-3: -The destruction of proteins in the body gives rise to two classes of waste products: nitrogenous and non-nitrogenous. The non-nitrogenous types of waste products are carbon dioxide and water. Nitrogenous waste products only relate to proteins since only proteins contain nitrogen.

Detailed explanation-4: -Urea is used as a preferred nitrogenous waste compared with ammonia at high ambient pNH3 or pH, with water restriction, or air breathing.