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Excretory System

The human excretory system governs the sum of excretory processes in the human body. This means that the human excretory system is designed to move all waste products leftover after nutrients are extracted in digestion through the body and out. Though exact classifications and terminology may vary with respect to the human excretory system, some physiologists and other scientists divide it into two distinct but interrelated pathways: the excretory system and the urinary system. The human excretory system, an extension of the gastrointestinal system, carries out elimination of solid waste, also known as feces, and does so through the movements of the rectum, which is the final section of the colon, and the anus, the external opening of the rectum which opens during defecation. The purpose of the urinary system is to expel liquid waste in the form of urine. The driving forces behind the urinary system are the kidneys, the body's ultimate filters. The urinary tract terminates with the urethra, also a part of the reproductive system along with the urinary system. 

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