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The excretory system eliminates nonsolid wastes from the body.

Learn about the excretory system, including the roles of the skin, lungs, kidneys, ureters, urinary bladder, and urethra in eliminating non-solid wastes from the body. Explore the process of filtration, reabsorption, and excretion in the kidneys, as well as the potential use of dialysis for kidney failure.

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The excretory system eliminates nonsolid wastes from the body.

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  1. skin lungs kidneys ureters urinary bladder urethra The excretory system eliminates nonsolid wastes from the body.

  2. Skin • Sweat glands excrete water, salts, small amount of urea skin

  3. lungs Lungs • Excretes carbon dioxide and water vapor

  4. ureters Ureters • Transport urine from each kidney to bladder

  5. Bladder • Urine storage urinary bladder

  6. Urethra • Tube where urine is released urethra

  7. Kidneys • Filter blood by removing excess water, urea, and wastes (urine). kidneys

  8. from body Collecting Duct to body from other nephrons loop of Henle • Nephrons • Filtering units in the kidney • Tiny tubes surrounded by capillaries

  9. 1 FILTRATION Water,electrolytes,aminoacids,glucose,urea, and other small molecules diffuse out of the blood,creating the filtrate. Glomerulus Bowman’scapsule Nephrons clean the blood in 3 steps.

  10. 2 REABSORPTION As the filtrate enters the rest of the tubule, most of the materials are reabsorbed into the blood. Materials not reabsorbed make up the urine, which flows into the loop of Henle. from body 3 EXCRETION In the loop of Henle, water can be reabsorbed one final time to reduce the volume of urine. The remaining urine flows into a collecting duct that leads to the ureter. collecting duct to body from other nephrons loop of Henle

  11. Dialysis can be used to filter and clean the blood if you have kidney failure.

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