USMLE

Distal Tubule

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Renal
  1. Renin
  2. Angiotensin II
  3. Aldosterone
  4. ADH
  5. RAAS System
  6. Kidney Overview
  7. Nephron Structure
  8. Glomerulus
  9. Proximal Tubule
  10. Loop of Henle
  11. Distal Tubule
  12. Collecting Duct
  • Distal (convoluted) Tubule
    • Physiologically-controlled reabsorption
      • Aldosterone increases Na+ reabsorption and K+ secretion
        • Reabsorption of sodium, calcium
          • Na+ coupled to water reabsorption, increasing blood pressure 
        • Secretion of potassium
        • Acid-base balance
          • By secreting H+ and reabsorbing bicarbonate
      • Antidiuretic hormone (ADH/vasopressin) increases water reabsorption via aquaporins