@gethelpwithproctoredexam: The human excretory system is responsible for removing nitrogenous metabolic wastes and maintaining internal balance. Its main organs include the kidneys, ureters, urinary bladder, and urethra. Kidneys filter blood to produce urine, regulate blood pressure, and maintain electrolyte balance. The nephron, the functional unit of the kidney, performs filtration. Urine formation occurs in three steps: ultrafiltration in the glomerulus, where small molecules are filtered; selective reabsorption, where useful substances like glucose and water return to the blood; and tubular secretion, where additional wastes are added to urine. Accessory organs such as the lungs, skin, and liver also assist in excretion. #nurselife #creatorsearchinsights #student #examhelp #nursingstudent

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