PCT

• There is a brush border with in the PCT - this increases the surface area

• Specialized cell - mitochondria - lines the inside tubular wall

  • This is because there is work that must be done to remove the particles from the PCT back to the Efferent ateriole by the vascular network

• Sodium, potassium, chloride, urea

  • Urea - nitrogenous waste & can destabilize membranes (anything that it is up against it will cause it to leak)

    • A houdini

• Some things can go straight through to the PCT into the urine (alternate pathway)

  • Creatine, hydrogen, uric acid can all go from the blood to the PCT (not using the glomerulus)

  • Hydrogen can also go through the walls of the DCT into the urine

Category: Anatomy Notes