structure of the nephron

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  • STRUCTURE OF THE NEPHRON
    • GLOMBERULUS +BOWMANS CAPSULE
      • Ultra filtration
        • 1. Pressure builds up in the glomerulus
        • 2. small molecules move from the blood into the nephron
          • glomerular filtrates: water, salt, urea and glucose
        • Passive process (no energy used)
    • PROXIMAL CONVOLUTED TUBE
      • SELECTIVE REABSORPTION
        • 1. Only glucose is reabsorbed
          • Little glucose is used so we can reabsorb a lot of it for respiration
        • 2. moves from the nephron to the blood
        • Uses energy
          • Active Transport
    • COLLECTING DUCT
      • Osmosis
        • When dehydrated
          • 1. conserve water so it must be returned to the blood
          • 2. Collecting duct becomes permeable
        • When hydrated
          • 1. No need to conserve water so it leaves in the urine
          • 2. Collecting duct becomes impermeable

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