Q:

What are fun facts about the excretory system?

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Quick Answer

One fun fact about the excretory system is that the kidneys receive signals to produce less urine in an effort to preserve hydration when the temperature is hot or there isn't much drinking water available, according to Biology4Kids. When someone consumes too much water, hormones release to make urine production increase.

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All of the blood in a person's body cycles through the kidneys approximately 400 times daily, according to Easy Science for Kids. As the blood passes through the kidneys, they filter harmful wastes and excess water out of the bloodstream, notes the National Kidney and Urologic Diseases Information Clearinghouse. The wastes and fluid comprise urine, which then travels out of the kidneys and into the bladder through two ureters.

Once the bladder nears its urine capacity, healthy individuals experience the urge to use the restroom, notes the he National Kidney and Urologic Diseases Information Clearinghouse. The urine then exits the body through the urethra, which is shorter in women than in men.

In addition to the kidneys, bladder, ureters and urethra, the skin and the lungs are also components of the excretory system, explains Monroe County Women's Disability Network. The skin is the human body's biggest organ and releases sweat via perspiration. The lungs release carbon dioxide, another waste product in humans, via the process of respiration.

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Related Questions

  • Q:

    What is the main function of the excretory system?

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    The excretory system is a collection of organs tasked with removing excess nitrogen and other toxins from the body. The kidneys, liver and large intestine perform most of the filtration duties. Solid waste passes out through the colon, gaseous waste exits the body through the lungs and excess liquid leaves through the bladder and skin.

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  • Q:

    What is the importance of the excretory system?

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    The excretory system removes the potentially toxic substances that accumulate from metabolic processes. In mammals, the primary organs used to filter the blood of excess chemicals, particularly nitrogenous wastes, are the kidneys. Other organs involved include the ureters that carry urine to the bladder, which stores the wastes until they can be excreted via the urethra.

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  • Q:

    What is the function of the excretory system?

    A:

    The primary function of the excretory system is to rid the body of waste to maintain homeostasis. The excretory system also regulates the balance of water, salts and other minerals within the body. Several different organs are part of the excretory system, and each has a different function.

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  • Q:

    How does the excretory system work?

    A:

    The excretory system is a system of organs that work together to rid the body of any waste. The excretory systems includes the lungs, ureter, urethra, liver, urinary bladder, kidneys and skin. The excretory system controls the volume of extracellular fluid and also maintains ionic balance in the fluid. The system controls the pH and osmotic concentration of the fluid, and it excretes urea, uric acid and ammonia.

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