Reabsorption by the proximal convoluted tubule

• How is the proximal tube adapted for reabsorption?

  • Microvili
  • Foldings
• What is the process of reabsorption?

  • Sodium ions are transported out of the proximal tube into blood capillaries
  • Sodium ions diffuse from the capillaries to the epithelial cells of the proximal tubule via co-transport
  • The molecules that have been taken in with the sodium ions diffuse into the blood
• What kind of ions are involved in reabsorption?

  Sodium ions
• What process brings other molecules into the proximal tubule?


  Co-transport