Blood glucose negative feedback system

  • Created by: luigi64
  • Created on: 28-02-20 18:52
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  • Negative feedback system controlling glucose concentration
    • Food is consumed and broken down - rise in blood glucose concentration
      • Rise detected by receptors in cell surface membrane of beta cells (coordinator) in the pancreas
        • Beta cells secrete insulin
    • Food has not been consumed for a while - decrease in blood glucose concentration
      • Decrease detected by receptors in cell surface membrane on alpha cells (coordinator) in the pancreas
        • Alpha cells secrete glucagon
          • Glucagon causes liver cells (effectors) to convert glycogen into glucose (glycogenolysis) and releases this into the blood
            • Blood glucose concentration raises to normal level


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