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Excretory System

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  • Explain dialysis, for kidney failure.
    An artificial kidney machine filters out wastes and toxins from a patient’s blood. Blood is passed through a machine that filters the blood, then returns it.
  • What is filtration?
    the process of removing wastes from the blood.
  • What is urea?
    A nitrogenous waste product resulting from kidney filtration
  • What are the parts of the excretory system?
    lungs, skin, kidneys, ureters, bladder, urethra
  • Explain how the lungs are part of the excretory system.
    Lungs excrete the waste produce carbon dioxide.
  • Explain how the kidneys can be permanatly damaged.
    Untreated diabetes, untreated high blood pressure, and/or use of drugs (illegal or prescription)
  • List of the function of the excretory system.
    maintain blood pH, removes wastes, maintain homeostasis, regulates the fluids/water and salts in the body
  • What is reabsorption?
    the process of returning useful materials, such as glucose
  • Explain how the kidneys are a part of the excretory system.
    The kindneys filter wastes and other substances from the blood to produce urine.
  • Nephrons are ...
    the filtering units of the kidney
  • Explain how the skin is a part of the excretory system.
    The skin excretes water and salts.
  • What is the waste product that is in the ureters and leaves through the urethra.
    urine
  • Where in the kidney does filtration happen?
    nephrons
  • List the three parts of a kidney.
    renal cortex, inner region, renal pelvis
  • Explain how urine exits the body.
    It exits through the urethera.