CH 23: Urinary System

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  1. What are eight functions of the kidneys?
    • 1- Filter plasma by separating wastes and returning useful chemicals to blood stream
    • 2- Regulate blood volume/pressure by retaining or eliminating water
    • 3- Regulate osmolarity of body fluids by controlling water/solutes eliminating
    • 4- Secrete enzyme renin (activates hormonal mechanisms that control BP and electrolyte balance). 
    • 5- Secrete erythropoietin, helps stimulate production of RBC
    • 6- Works with lungs with regulate PCO2 and pH balance
    • 7- Synthesize hormone calcitriol (helps with calcium homeostasis)
    • 8- During starvation, carries out gluconeogenesis by deaminate amino acides and synthesizing glucose.
  2. Kidneys filter:
    blood plasma, separating wastes for removal and returning useful chemicals to blood stream
  3. Kidneys regulate:
    blood volume and pressure via water conservation.
  4. Kidneys regulate osmolarity by:
    by controlling amounts of solutes/water eliminated
  5. Kidneys use renin to:
    control blood pressure and electrolyte balance
  6. How do kidneys help improve oxygenation throughout the body?
    They secrete erythropoeitin, which stimulates production of RBCs
  7. What do the kidneys work with the lungs to regulate?
    Acid-base levels of body fluids
  8. How do the kidneys help during periods of extreme starvation?
    They deaminate amino acids during gluconeogenesis. Amine is excreted as ammonia and glucose is made.
  9. What is blood urea nitrogen?
    The level of nitrogenous waste in the blood
  10. What four systems assist with excretion?
    Respiratory system, integumentary system, digestive system, urinary system.
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CH 23: Urinary System
2016-03-28 23:13:11

Ch 23: Urinary System pg 906
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